- H.R. 10171August 27, 2026
- H.R. 10156August 27, 2026
- H.R. 10172August 27, 2026
- H.R. 10160August 27, 2026
- H.R. 10181August 27, 2026
- H.R. 10176August 27, 2026
- H.Res. 1496August 27, 2026
- H.R. 10164August 27, 2026
- H.R. 10170August 27, 2026
- H.Res. 1494August 27, 2026
- H.R. 10163August 27, 2026
- H.R. 10157August 27, 2026
- Administration
- Agriculture
- Agriculture, Nutrition, And Forestry
- Appropriations
- Armed Services
- Banking, Housing, And Urban Affairs
- Budget
- Commerce, Science, And Transportation
- Education and Workforce
- Energy And Commerce
- Energy And Natural Resources
- Environment And Public Works
- Ethics
- Finance
- Financial Services
- Foreign Affairs
- Foreign Relations
- Health, Education, Labor, And Pensions
- Homeland Security
- Homeland Security And Governmental Affa…
- Indian Affairs
- Indian and Insular Affairs
- Intelligence
- Judiciary
- Natural Resources
- Oversight And Government Reform
- Permanent Select Intelligence
- Rules
- Rules And Administration
- Science, Space, And Technology
- Select Intelligence
- Small Business
- Small Business And Entrepreneurship
- Subcommittee on Aviation
- Subcommittee on Border Security and Enf…
- Subcommittee on Coast Guard and Maritim…
- Subcommittee on Commodity Markets, Digi…
- Subcommittee on Conservation, Research,…
- Subcommittee on Counterterrorism and In…
- Subcommittee on Cybersecurity and Infra…
- Subcommittee on Disability Assistance a…
- Subcommittee on Economic Development, P…
- Subcommittee on Economic Opportunity
- Subcommittee on Emergency Management an…
- Subcommittee on Energy and Mineral Reso…
- Subcommittee on Federal Lands
- Subcommittee on Forestry and Horticultu…
- Subcommittee on General Farm Commoditie…
- Subcommittee on Health
- Subcommittee on Highways and Transit
- Subcommittee on Livestock, Dairy, and P…
- Subcommittee on Nutrition and Foreign A…
- Subcommittee on Oversight and Investiga…
- Subcommittee on Oversight, Investigatio…
- Subcommittee on Railroads, Pipelines, a…
- Subcommittee on Transportation and Mari…
- Subcommittee on Water Resources and Env…
- Subcommittee on Water, Wildlife and Fis…
- Transportation And Infrastructure
- Veterans' Affairs
- Ways And Means

S. 4188
U.S. Senate•In Senate Committee
Summary
S. 4188, the Public Integrity in Financial Prediction Markets Act of 2026, was introduced in the Senate on Mar 25, 2026 by Sen. Elissa Slotkin (D) with 3 co-sponsors. It was referred to Homeland Security And Governmental Affairs, and last saw action on Mar 25, 2026: Read twice and referred to the Committee on Homeland Security and Governmental Affairs.
Record
Text
S. 4188 has 3 co-sponsors.
sb4188/introduced-in-senate.txt119 S4188 IS: Public Integrity in Financial Prediction Markets Act of 2026U.S. Senate2026-03-25text/xmlENPursuant to Title 17 Section 105 of the United States Code, this file is not subject to copyright protection and is in the public domain.II 119th CONGRESS 2d Session S. 4188 IN THE SENATE OF THE UNITED STATES March 25, 2026 Ms. Slotkin (for herself, Mr. Young , Mr. Schiff , and Mr. Curtis ) introduced the following bill; which was read twice and referred to the Committee on Homeland Security and Governmental Affairs A BILLTo prohibit a covered individual from engaging in covered transactions involving prediction market contracts, and for other purposes.1.Short titleThis Act may be cited as the Public Integrity in Financial Prediction Markets Act of 2026 .2.Prohibition on covered transactions involving prediction market contracts(a)In generalChapter 131 of title 5, United States Code, is amended by adding at the end the following:IVProhibited covered transactions involving prediction market contracts13151.DefinitionsIn this subchapter:(1)Covered individualThe term covered individual means—(A)the President;(B)the Vice President;(C)a Member of Congress;(D)a House of Representatives or Senate employee;(E)a political appointee; or(F)an employee of an Executive agency or independent regulatory agency.(2)Covered transactionThe term covered transaction means the purchase, sale, or exchange of any prediction market contract.(3)Executive agencyThe term Executive agency has the meaning given the term in section 105 of title 5.(4)House of Representatives or Senate employeeThe term House of Representatives or Senate employee —(A)means an employee of the Federal Government whose pay is disbursed by the Secretary of the Senate or the Chief Administrative Officer of the House of Representatives; and(B)does not include an employee described in subparagraph (A) who is serving under a temporary or term appointment.(5)Independent regulatory agencyThe term independent regulatory agency has the meaning given the term in section 3502 of title 44.(6)Material nonpublic informationThe term material nonpublic information means information—(A)that a reasonable investor would consider important in making a decision relating to a prediction market contract; and(B)that is not publicly available.(7)Member of Congress; supervising ethics officeThe terms Member of Congress and supervising ethics office have the meanings given those terms in section 13101.(8)Political appointeeThe term political appointee has the meaning given the term in section 106(f)(5) of title 49.(9)Prediction market contractThe term prediction market contract means any financial instrument, contract, or derivative—(A)listed on or offered by a platform, regardless of whether the platform is domiciled in the United States; and(B)tied to the occurrence or non-occurrence of an event, including event contracts, as described in section 5c(c)(5)(C)(i) of the Commodity Exchange Act ( 7 U.S.C. 7a–2(c)(5)(C)(i) ).13152.ProhibitionNo covered individual may use material nonpublic information derived from the position of the covered individual as President, Vice President, a Member of Congress, a House of Representatives or Senate employee, a political appointee, or an employee of an Executive agency or independent regulatory agency or gained from the performance of the official responsibilities of the covered individual as a means for making a profit through a covered transaction.13153.Penalties(a)In generalNotwithstanding any other provision of law, including any regulation, a covered individual who violates section 13152 shall be assessed a fine not to exceed the greater of—(1)$500; or(2)an amount equal to double the profit made by the covered individual through the applicable covered transaction.(b)Deposit in TreasuryThe fines paid under subsection (a) shall be deposited in the miscellaneous receipts of the Treasury.13154.Duties of supervising ethics officesNot later than 180 days after the date of enactment of the Public Integrity in Financial Prediction Markets Act of 2026 , each supervising ethics office shall—(a)impose and collect penalties in accordance with section 13153;(b)establish such procedures and standard forms as the supervising ethics office determines appropriate to implement this subchapter;(c)in consultation with the Commodity Futures Trading Commission, issue such rules and guidelines as the supervising ethics office determines appropriate for the implementation and application of this subchapter; and(d)publish on a website all procedures, forms, rules, and guidelines described in this section.13155.ReportsNot later than 30 days after receiving notification of any covered transaction the value of which is more than $250 and to which the covered individual is a party, the covered individual shall submit to the applicable supervising ethics office a report describing the covered transaction, which shall include—(1)the value of the prediction market contract, including the purchase price and number of prediction market contracts purchased;(2)the date and time of the covered transaction;(3)the name of the prediction market contract and the position taken on the prediction market contract;(4)the prediction market contract trading platform used to complete the covered transaction; and(5)the profit or loss of the covered transaction after the prediction market contract closes, or the covered individual exits the position, provided that if the prediction market contract is not closed on the date on which the report under this section is submitted, an additional report shall be submitted not later than 30 days after the date on which the prediction market contract closes or the covered individual exits the position..(b)Clerical amendmentThe table of sections for chapter 131 of title 5, United States Code, is amended by adding at the end the following:SUBCHAPTER IV—Prohibited covered transactions involving prediction market contracts13151. Definitions.13152. Prohibition.13153. Penalties.13154. Duties of supervising ethics offices.13155. Reports..
Tracker
The tracker indicates the progress of this legislation as it moves through the legislative process.
- Introduced2026-03-25
- Passed Senate
- Passed House
- Conference
- To President
- Became Law
A bill to prohibit a covered individual from engaging in covered transactions involving prediction market contracts, and for other purposes.
Sponsors
Sen. Elissa Slotkin (D) sponsors S. 4188, and 3 members have co-sponsored it, all of them from the day it was introduced.
Committees
S. 4188 went before 1 committee: Homeland Security and Governmental Affairs.

Actions
S. 4188 has taken 2 actions since Mar 25, 2026.
| Chamber | Action | |||
|---|---|---|---|---|
Mar 25, 2026 | Senate | Read twice and referred to the Committee on Homeland Security and Governmental Affairs.Homeland Security and Governmental Affairs Committee | ||
Mar 25, 2026 | — | Introduced in Senate |
Votes
S. 4188 has not gone to a roll call.
Titles
S. 4188 goes by 3 titles, 1 of them short titles.
- Public Integrity in Financial Prediction Markets Act of 2026 — Display Title
- Public Integrity in Financial Prediction Markets Act of 2026 — Short Title(s) as Introduced
- A bill to prohibit a covered individual from engaging in covered transactions involving prediction market contracts, and for other purposes. — Official Title as Introduced
Lobbying
2 clients hired 3 firms and 7 registered lobbyists who named S. 4188 in 5 quarterly filings, 2026. Reported under the Lobbying Disclosure Act; a filing’s income covers everything its registrant worked that quarter, so the amounts below are the filings’, not this bill’s.
Filed under Taxation/Internal Revenue Code, Gaming/Gambling/Casino, Indian/Native American Affairs, Real Estate/Land Use/Conservation, Banking, Budget/Appropriations, Civil Rights/Civil Liberties, Defense.
Clients
Who paid to be heard, by how many filings named the bill.
| Client | Business | State | Firms | Filings | Reported |
|---|---|---|---|---|---|
| BOYD GAMING CORPORATION | Multi-jursidictional gaming company. | Nevada | 2 | 4 | $120K |
| TRANSPARENCY INTERNATIONAL U.S. (A PROJECT OF THE FUND FOR CONSTITUTIONAL GOVT) | nonprofit organization | District of Columbia | 1 | 1 | — |
Firms
Registrants who filed on the bill, by filings.
| Registrant | Clients | Filings | Reported |
|---|---|---|---|
| BOYD GAMING CORPORATION | 1 | 2 | — |
| TIBER CREEK GROUP | 1 | 2 | $120K |
| TRANSPARENCY INTERNATIONAL U.S. (A PROJECT OF THE FUND FOR CONSTITUTIONAL GOVT) | 1 | 1 | — |
Lobbyists
Named on the filings that cite the bill.
| Lobbyist | Firms | Clients | Filings |
|---|---|---|---|
| DREW CANTOR | 1 | 1 | 2 |
| JAN BEUKELMAN | 1 | 1 | 2 |
| JEFFREY SHAPIRO | 1 | 1 | 2 |
| PAUL ANDERSON | 1 | 1 | 2 |
| RYAN SOULTZ | 1 | 1 | 2 |
| GARY KALMAN | 1 | 1 | 1 |
| SCOTT GREYTAK | 1 | 1 | 1 |
Filings
The documents themselves, on the Senate’s Lobbying Disclosure site, largest reported first.
| Client | Registrant | Period | Reported | Document |
|---|---|---|---|---|
| BOYD GAMING CORPORATION | TIBER CREEK GROUP | 2026 second_quarter | $60K | 2nd Quarter - Report |
| BOYD GAMING CORPORATION | BOYD GAMING CORPORATION | 2026 second_quarter | $60K | 2nd Quarter - Report |
| BOYD GAMING CORPORATION | BOYD GAMING CORPORATION | 2026 first_quarter | $60K | 1st Quarter - Report |
| BOYD GAMING CORPORATION | TIBER CREEK GROUP | 2026 first_quarter | $60K | 1st Quarter - Report |
| TRANSPARENCY INTERNATIONAL U.S. (A PROJECT OF THE FUND FOR CONSTITUTIONAL GOVT) | TRANSPARENCY INTERNATIONAL U.S. (A PROJECT OF THE FUND FOR CONSTITUTIONAL GOVT) | 2026 second_quarter | $40K | 2nd Quarter - Report |
Classification
The Congressional Research Service files S. 4188 under Finance and Financial Sector, one of its 31 policy areas.
CRS Subjects
CRS assigns every bill one policy area from its 31; S. 4188’s is Finance and Financial Sector.
s4188/policy-areas.txtSource: congress.gov · legiscan.com