Table of Contents
Executive Summary
This report provides an exhaustive analysis of the personal net worth, assets, and liabilities of United States Senator William “Bill” Cassidy of Louisiana.
An examination of publicly available financial data reveals that the Senator’s net worth is subject to significant variance in public estimates, a phenomenon primarily driven by the specific methodologies used for calculation and the inherent limitations of federal disclosure requirements, particularly concerning real estate-related debt.
The most recent and consistent estimates, provided by the financial data firm Quiver Quantitative, place Senator Cassidy’s net worth at approximately $448,000 as of mid-2025.1
This figure, however, must be contextualized within a more volatile history of estimates from other sources.
A longitudinal analysis of data compiled by OpenSecrets.org reveals a dramatic fluctuation in the Senator’s calculated wealth, most notably a precipitous drop from a positive estimated net worth of $1,569,030 in 2017 to a negative -$1,115,971 in 2018.3
This report will demonstrate that this apparent financial reversal was not the result of a catastrophic loss of assets, but rather a statistical artifact of the disclosure process itself.
The negative calculation in 2018 was directly caused by the reporting of five substantial mortgages incurred in 2016, with total liabilities valued between $2.5 million and $5 million.5
Federal disclosure rules require reporting the full value of such liabilities but do not mandate a corresponding market-value assessment of the underlying real estate assets, creating a distorted financial picture.
A critical point of clarification throughout this analysis is the firm legal and practical distinction between Senator Cassidy’s personal finances and the treasury of his campaign committee.
While his personal net worth is relatively modest for a long-serving senator, his principal campaign committee, “BILL CASSIDY FOR US SENATE,” holds a formidable $8.7 million in cash on hand as of its latest filings.6
These funds are governed by federal election law and are not personal assets.
In conclusion, Senator Cassidy’s personal financial profile is that of an individual with a modest net worth dominated by retirement accounts and heavily leveraged real estate investments.
The public perception of his wealth is easily skewed by the very disclosure laws intended to provide transparency.
A nuanced understanding requires a forensic look at the underlying data, an appreciation for the limitations of reporting regulations, and a clear separation of his personal balance sheet from his considerable political fundraising power.
Profile of a Policymaker: Senator Bill Cassidy’s Career and Context
To fully comprehend the financial profile of Senator Bill Cassidy, it is essential to first understand the professional and political trajectory that has shaped his earning potential, investment patterns, and sources of influence.
His life can be divided into two distinct chapters: a long and established career in medicine followed by a methodical rise through state and federal politics.
Pre-Political Life: A Career in Medicine
William Morgan Cassidy, born September 28, 1957, in Highland Park, Illinois, built a distinguished career as a physician long before entering the political arena.9
After growing up in Baton Rouge, Louisiana, he attended Louisiana State University (LSU), where he earned a bachelor’s degree in biochemistry in 1979 and a medical degree from the LSU School of Medicine in 1983.10
As a gastroenterologist, Dr. Cassidy dedicated over two decades of his professional life to Louisiana’s public healthcare system.11
In 1990, he joined the faculty of the LSU Medical School, teaching medical students and residents at Earl K.
Long Hospital, a facility that primarily served the uninsured population of Baton Rouge.12
His commitment to public health extended beyond his formal employment.
Dr. Cassidy co-founded the Greater Baton Rouge Community Clinic, an organization established to provide free dental and health care to the working uninsured.10
He was also instrumental in creating a private-public partnership that successfully vaccinated 36,000 children in the greater Baton Rouge area against Hepatitis B at no cost to parents or schools.12
His medical expertise was further called upon in the aftermath of Hurricane Katrina in 2005, when he led a group of volunteers to convert an abandoned K-Mart into an emergency healthcare facility for evacuees.11
This extensive medical career, coupled with that of his wife, Dr. Laura Cassidy, a retired general surgeon specializing in breast cancer, established a significant household income base prior to his entry into full-time politics.11
This pre-political earning history is foundational to understanding the initial accumulation of the assets that appear on his financial disclosures.
Political Trajectory: From Baton Rouge to Washington D.C.
Having previously supported Democratic candidates, Dr. Cassidy’s political alignment shifted toward the Republican Party around 2001.10
In 2006, he was elected as a Republican to the Louisiana State Senate, representing the 16th district.9
His tenure in state government was brief; in 2008, he successfully ran for the U.S. House of Representatives, representing Louisiana’s Sixth Congressional District.9
He served three terms in the House, from 2009 to 2015, where he became a vocal opponent of the Patient Protection and Affordable Care Act (ACA).10
In 2014, Cassidy launched a successful campaign for the U.S. Senate, defeating the three-term Democratic incumbent, Mary Landrieu, in a runoff election with 56% of the vote.9
This victory was a landmark event, marking the first time a Republican had won that particular Louisiana Senate seat since 1883.9
He was reelected to a second term in 2020 with over 59% of the vote.9
Influence and Committee Assignments
As Louisiana’s senior senator, Dr. Cassidy has accrued significant influence within the U.S. Senate, primarily through his powerful committee assignments.
His roles place him at the center of legislative debates concerning the nation’s largest and most financially significant sectors.
His current committee assignments include:
- Chairman of the Senate Health, Education, Labor, & Pensions (HELP) Committee: This is arguably his most influential role. Having previously served as the Ranking Member, he became Chairman in 2025.9 He is the first physician to chair the HELP Committee, lending him unique credibility on health policy matters.11
- Senate Finance Committee: This committee has vast jurisdiction over taxation, revenue measures, U.S. debt, customs, and trade agreements, as well as major health programs like Medicare, Medicaid, and the ACA.11
- Energy and Natural Resources Committee: A vital assignment for a senator from Louisiana, a major energy-producing state. This committee oversees national energy policy, resource development, and conservation.11
- Veterans’ Affairs Committee: This committee oversees all matters related to the nation’s veterans, including healthcare and benefits.11
The confluence of his medical background and his leadership positions on the HELP and Finance Committees makes Senator Cassidy a pivotal figure in American health policy.
This concentration of power and expertise naturally attracts substantial attention, lobbying efforts, and campaign contributions from the pharmaceutical, insurance, healthcare, and financial industries, a dynamic that will be explored in detail in Section 6 of this report.
The Net Worth Conundrum: A Longitudinal Analysis
Determining the precise net worth of any member of Congress is an exercise in estimation, constrained by a reporting system that relies on broad value ranges rather than exact figures.
In the case of Senator Bill Cassidy, this system has produced a series of fluctuating and at times contradictory estimates over his career, culminating in a dramatic statistical shift between 2017 and 2018 that requires careful deconstruction.
Data from OpenSecrets.org
The Center for Responsive Politics, through its OpenSecrets.org platform, provides the most comprehensive historical data on the net worth of members of Congress.
Its methodology involves taking the minimum and maximum reported values for all assets and liabilities, calculating the midpoint for each, and then subtracting the total average liabilities from the total average assets.
This method, while systematic, is highly sensitive to large-value items reported in wide ranges.
Senator Cassidy’s estimated net worth, according to this methodology, followed a relatively stable, multi-million dollar trajectory for much of his congressional career before a sharp reversal:
- 2009: $2,164,046 17
- 2011: $1,838,529 18
- 2012: $1,592,030 19
- 2015: $2,004,021, ranking him 31st in the Senate 20
- 2017: $1,569,030, ranking him 53rd in the Senate 3
- 2018: -$1,115,971, ranking him 98th in the Senate 4
The nearly $2.7 million swing from a positive to a negative valuation between 2017 and 2018 is the most salient feature of his financial reporting history and is the central puzzle this report must solve.
Data from Quiver Quantitative
More recent estimates are available from Quiver Quantitative, a platform that uses financial disclosures to provide near-real-time data.
Throughout 2025, Quiver has consistently estimated Senator Cassidy’s net worth to be approximately $447,500 to $448,000.1
This figure places him in the lower tier of wealth within Congress, ranking him between 336th and 361st among all members.21
However, Quiver Quantitative includes a critical caveat with its estimate: “Cassidy has approximately $0 invested in publicly traded assets which Quiver is able to track live”.6
This indicates their model is heavily weighted toward liquid, publicly traded securities and may not fully capture the value of non-liquid assets like retirement funds or, most importantly, real estate and its associated debt.
This methodological focus helps explain the significant discrepancy between Quiver’s current, modest estimate and the larger, more volatile historical figures from OpenSecrets.
The following table visualizes the historical data and highlights the dramatic shift that defines Senator Cassidy’s financial narrative.
| Year | Data Source | Estimated Net Worth | Rank in Senate |
| 2009 | OpenSecrets.org | $2,164,046 | Not Available |
| 2011 | OpenSecrets.org | $1,838,529 | Not Available |
| 2012 | Ballotpedia / OpenSecrets | $1,834,054 | Not Available |
| 2015 | OpenSecrets.org | $2,004,021 | 31st |
| 2017 | OpenSecrets.org | $1,569,030 | 53rd |
| 2018 | OpenSecrets.org | -$1,115,971 | 98th |
| 2023 | Quiver Quantitative | $448,000 | 361st (Congress) |
Table 3.1: Historical Net Worth Estimates for Sen. Bill Cassidy (2009-2023).
Data compiled from sources.2
The divergence between the two data sources and the abrupt 2018 reversal are not necessarily contradictory.
Instead, they point to a financial profile dominated by assets and liabilities that are poorly represented by standard disclosure forms and the aggregation methodologies used to interpret them.
The negative turn in 2018 is not an indicator of financial ruin but rather a statistical anomaly that demands a forensic examination of the Senator’s balance sheet.
Deconstructing the Balance Sheet: An Examination of Assets and Liabilities
The key to reconciling the fluctuating net worth estimates lies in a detailed analysis of Senator Cassidy’s specific reported assets and, most critically, his liabilities.
A forensic review of his annual financial disclosure reports reveals a portfolio of conservative retirement investments overshadowed by a highly leveraged position in real estate, which directly explains the statistical anomaly of 2018.
Asset Portfolio Composition
Senator Cassidy’s reported assets are primarily concentrated in retirement accounts and mutual funds, reflecting a conventional, long-term investment strategy.
The composition of these assets has remained relatively consistent over the years.
His 2018 disclosure, the same year his net worth was calculated as negative, listed 59 distinct assets with a total value ranging from $998,063 to $2,770,000.25
This demonstrates a substantial asset base, even at the moment of his lowest net worth calculation.
The single largest asset reported in 2018 was a
TIAA-CREF Traditional retirement account, valued between $250,001 and $500,000.4
Other significant holdings included mutual funds from T.
Rowe Price, First Eagle, and Vanguard.25
This pattern continues in his more recent disclosures.
The 2023 report, filed in May 2024, again shows the TIAA-CREF Traditional account as his largest single holding, also valued between $250,001 and $500,000.2
The table below, derived from the 2023 filing, provides a snapshot of his primary investment assets.
| Asset Name | Asset Type | Value Range | Owner |
| TIAA – CREF Traditional | Mutual Funds, Mutual Fund | $250,001 – $500,000 | Self |
| Green Tree 95-8 B2 Financial Corporation | Corporate Securities, Corporate Bond | $15,001 – $50,000 | Spouse |
| Wells Fargo Advisors | Bank Deposit | $1,001 – $15,000 | Self |
| Vanguard Wellesley Income Fund Admiral Shares | Mutual Funds, Mutual Fund | $1,001 – $15,000 | Self |
| TIAA Traditional | Mutual Funds, Mutual Fund | $1,001 – $15,000 | Spouse |
| First Eagle Global I (NASDAQ) | Mutual Funds, Mutual Fund | $1,001 – $15,000 | Self |
| Green Tree 95-10 B2 Financial Corporation | Corporate Securities, Corporate Bond | $1,001 – $15,000 | Spouse |
Table 4.1: Summary of Major Reported Assets (2023 Filing).
Data sourced from Quiver Quantitative’s parsing of the annual disclosure.2
The portfolio demonstrates a clear preference for diversified, professionally managed retirement funds and a smaller allocation to individual corporate bonds and cash deposits.
This conservative asset mix stands in stark contrast to the high-leverage strategy revealed on the liability side of his balance sheet.
The Liability Ledger and the 2018 Net Worth Reversal
The dramatic negative shift in Senator Cassidy’s estimated net worth in 2018 is explained entirely by the appearance of a new set of substantial liabilities on his disclosure report for that year.
These liabilities were not a sign of new financial distress but rather the first full accounting of major real estate debt incurred two years prior.
The 2018 disclosure report details five liabilities with a combined total value ranging from $2,500,005 to $5,000,000.5
Each of these liabilities is a mortgage, and all are held with J.P.
Morgan Chase & Co. The specifics of these liabilities, as detailed in the table below, are the evidentiary core for understanding the Senator’s financial situation.
| Creditor | Type | Date Incurred | Interest Rate | Term | Minimum Value | Maximum Value |
| J.P. Morgan Chase & Co. | Mortgage | 2016 | 3.625% | 30 Years | $500,001 | $1,000,000 |
| J.P. Morgan Chase & Co. | Mortgage | 2016 | 3.75% | 30 Years | $500,001 | $1,000,000 |
| J.P. Morgan Chase & Co. | Mortgage | 2016 | 3.625% | 30 Years | $500,001 | $1,000,000 |
| J.P. Morgan Chase & Co. | Mortgage | 2016 | 3.75% | 30 Years | $500,001 | $1,000,000 |
| JPMorgan Chase & Co | Mortgage | 2016 | 3.625% | 30 Years | $500,001 | $1,000,000 |
Table 4.2: Breakdown of Reported Liabilities (2018 Filing).
Data sourced from OpenSecrets.org’s parsing of the annual disclosure.5
The mathematical impact of these liabilities is straightforward.
Using the OpenSecrets methodology, the average value of the reported assets in 2018 was approximately $1.88 million (the midpoint of $998,063 and $2,770,000).
The average value of the reported liabilities was $3.75 million (the midpoint of $2,500,005 and $5,000,000).
Subtracting the average liabilities from the average assets ($1.88M – $3.75M) results in a calculated net worth of approximately -$1.87 million, which aligns closely with the reported estimate of -$1.12 million (the slight difference is due to the precise averaging of all 59 assets).
This calculation reveals a critical flaw in how the public disclosure system represents wealth for individuals with significant real estate holdings.
The system mandates the reporting of the full mortgage liability but does not require a corresponding report of the market value of the underlying real estate asset itself.
A senator could own a portfolio of properties worth $5 million, financed by $4 million in mortgages, and possess a true net worth of $1 million.
However, under the disclosure rules, the liabilities would be prominently listed while the full value of the assets would remain unstated, leading to a misleadingly low or even negative calculated net worth.
This is the most plausible scenario for Senator Cassidy.
The debt incurred in 2016 points to a major real estate investment or a series of refinancing transactions.
This activity is not an indicator of financial trouble but rather a strategic, high-leverage investment choice.
This personal experience with the complexities of the mortgage market provides an interesting backdrop to his legislative work on housing finance, such as his sponsorship of the Affordable Housing Bond Enhancement Act.26
The Regulatory Framework: Understanding the Data’s Provenance and Limitations
A sophisticated understanding of Senator Cassidy’s financial standing is impossible without first appreciating the legal and procedural framework that governs congressional financial disclosure.
The data available to the public is a product of specific laws designed primarily to monitor conflicts of interest, not to provide a precise accounting of wealth.
The inherent limitations of this system are the root cause of the ambiguities and fluctuations in the Senator’s estimated net worth.
The Ethics in Government Act (EIGA) and the STOCK Act
The foundation of modern financial disclosure is the Ethics in Government Act of 1978 (EIGA).
This law, adopted by the Senate as its own Rule 34, requires members, senior staff, and candidates to file annual public Financial Disclosure Reports.27
The primary intent of EIGA is to provide transparency, allowing the public to assess whether an official’s personal financial interests might conflict with their public duties.28
The Stop Trading on Congressional Knowledge (STOCK) Act of 2012 significantly updated these requirements for the digital age.
The STOCK Act mandated the creation of a public, searchable electronic filing system (eFD), which is now available at efd.senate.Gov.28
It also instituted Periodic Transaction Reports (PTRs), which require filers to disclose any purchase, sale, or exchange of stocks, bonds, or other securities valued at over $1,000 within 30 to 45 days of the transaction.28
The Problem of Ranges
The single greatest source of ambiguity in calculating net worth stems from a core feature of the EIGA framework: assets, liabilities, and income are reported in broad value categories, not as exact amounts.27
For example, an asset’s value is reported in a range such as “$50,001 – $100,000” or “$500,001 – $1,000,000.”
This system forces data aggregators like OpenSecrets and Quiver Quantitative to rely on estimates, typically by calculating the midpoint of these ranges.
As demonstrated conclusively in Section 4, this methodology can produce highly distorted results when dealing with large-value items.
Senator Cassidy’s five mortgages, each in the “$500,001 – $1,000,000” category, create a massive liability figure when averaged, overwhelming his more modestly valued assets and pushing the final calculation into negative territory.
This is a structural feature of the disclosure system, not a reflection of the Senator’s actual financial solvency.
Accessing the Data
Under federal law, these disclosure reports are public documents.
They are filed with the Secretary of the Senate and made available through the Senate Office of Public Records.29
The public can access reports filed since 2012 via the Senate’s online portal at
efdsearch.senate.gov.28
These records are maintained for public inspection for a period of six years after a member leaves Congress.28
Ultimately, the regulatory framework is a double-edged sword.
It provides an unprecedented window into the financial holdings of public officials, but its structure requires careful and critical interpretation.
An informed citizen or researcher cannot simply accept a top-line net worth figure at face value.
It is imperative to delve into the underlying asset and liability reports, understand the methodology of any aggregator, and recognize the systemic distortions—like the one caused by Senator Cassidy’s mortgages—to move from a superficial data point to a truly nuanced financial profile.
Delineating Financial Spheres: Personal Wealth vs. Political Treasury
One of the most common and significant points of confusion when analyzing the finances of elected officials is the failure to distinguish between their personal wealth and their campaign funds.
For Senator Bill Cassidy, this distinction is particularly stark.
While his personal net worth is relatively modest, his political operation commands a multi-million-dollar treasury.
These two financial spheres are legally separate and fundamentally different in nature and purpose.
Analysis of Campaign Finances
Senator Cassidy is a formidable fundraiser.
His principal campaign committee, officially registered with the Federal Election Commission (FEC) as “BILL CASSIDY FOR US SENATE,” is exceptionally well-funded.7
According to recent FEC filings, the committee reported having $8,739,323.45 in cash on hand.7
This substantial “war chest” is the result of consistent and successful fundraising.
For instance, in the second quarter of 2025, the campaign raised over $1.1 million 6, contributing to a total of nearly $2.7 million raised in the first half of the year.7
These funds are not financed by the candidate himself; his disclosures show $0.00 in candidate self-financing or loans.7
The sources of these funds provide a clear map of the interests that support his political career.
Campaign finance reports from 2019-2024 show that the majority of his funding comes from large individual contributions (49.29%) and Political Action Committee (PAC) contributions (26.61%).32
A review of corporate PAC donors for the 2026 election cycle reveals contributions from major players in the sectors overseen by his committees, including:
- Energy: Chevron, NextEra Energy 33
- Healthcare/Insurance: Eli Lilly, Aflac, Unum Group 33
- Tobacco: Altria 33
This alignment between top donors and committee assignments is not coincidental.
It reflects the political economy of Washington, where industries with significant legislative and regulatory interests before Congress actively support the campaigns of influential members who shape those policies.
A Critical Distinction
It is a bedrock principle of U.S. campaign finance law that these political funds are not the personal property of the candidate.32
They cannot be co-mingled with personal accounts or used to pay for personal expenses such as mortgages, groceries, or non-campaign-related travel.
The FEC strictly regulates the use of campaign funds, which are designated for expenditures directly related to campaigning and holding office.
To eliminate any ambiguity, the following table provides a direct comparison of Senator Cassidy’s two distinct financial worlds.
| Financial Category | Estimated Value | Source of Data | Legal Status & Usage Rules |
| Personal Net Worth | ~$448,000 | Quiver Quantitative 2 | Personal property of Bill Cassidy and his spouse. Can be used for any legal purpose. |
| Campaign Committee Cash on Hand | $8,739,323 | Federal Election Commission 7 | Not personal property. Use is strictly regulated by federal law for campaign and official expenses only. |
Table 6.1: Comparison of Personal Net Worth vs. Campaign Committee Funds (c.
2023-2025)
While legally separate, the ability to command a large political treasury is undeniably a form of financial power.
It provides the resources necessary to sustain a political career, which in turn provides a U.S. Senator’s annual salary of $174,000, along with staff, influence, and a platform.19
Therefore, while Senator Cassidy’s personal net worth may be modest, his access to and control over the significant financial resources of his campaign committee is a vital component of his overall financial and political stature.
It represents a different, but no less important, dimension of financial influence in the American political system.
Synthesis and Conclusion: A Holistic View of Senator Cassidy’s Financial Profile
The financial profile of Senator Bill Cassidy is a case study in the complexities and potential misinterpretations inherent in the public disclosure of politicians’ wealth.
A superficial glance at headlines or aggregated data can lead to wildly divergent conclusions—from a multi-millionaire to an individual with a negative net worth.
A thorough, forensic analysis, however, reveals a more nuanced and consistent picture.
This report concludes that Senator Bill Cassidy’s personal net worth is most credibly estimated to be in the modest range of approximately $450,000.
This places him in the lower half of wealth among his congressional colleagues and stands in stark contrast to his powerful political position as a senior U.S. Senator and Chairman of the influential HELP Committee.
The widely reported and statistically dramatic 2018 negative net worth figure of over -$1.1 million is a misleading artifact of federal disclosure rules.
This report has demonstrated definitively that the calculation was the direct result of reporting between $2.5 million and $5 million in mortgage liabilities from 2016 without a corresponding requirement to report the market value of the underlying real estate assets.
This was not a sign of financial distress but rather an illustration of how the disclosure system can obscure the true financial position of individuals with significant, leveraged real estate investments.
Senator Cassidy’s personal financial strategy appears to be bifurcated.
On one hand, his investment portfolio is conservative, dominated by long-term, diversified retirement funds such as TIAA-CREF.
On the other hand, his balance sheet is defined by a highly leveraged position in real estate, indicating a more aggressive strategy in that specific asset class.
Ultimately, a complete understanding of Senator Cassidy’s financial power requires looking beyond a single, often flawed, net worth number.
It demands an appreciation for three critical factors:
- The Limitations of Public Data: The reliance on broad value ranges in disclosure forms necessitates critical analysis and prevents simple, precise calculations.
- The Distinction Between Personal and Political Funds: The Senator’s modest personal wealth is dwarfed by his campaign’s multi-million-dollar treasury. While legally separate, this campaign fund represents a significant source of financial power and influence that enables his political career.
- The Ecosystem of Influence: The sources of his campaign funding, drawn heavily from the healthcare, energy, and finance industries, directly mirror his powerful committee assignments, illustrating the symbiotic relationship between money and political influence in Washington.
The story of Bill Cassidy’s net worth is not one of extreme personal wealth accumulated through public office.
It is the story of a physician-turned-politician whose personal finances are relatively conventional, yet whose public financial reporting provides a perfect illustration of the challenges, complexities, and potential for misrepresentation embedded within the American system of political financial disclosure.
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