
U.S. Senator for Maryland
Democrat
Senate term end not loaded yet
Missed 1.5% of roll calls. Chamber median 2.1%.
The full voting recordCounts roll calls where most Democrats and most Republicans voted differently, leaving out procedural votes.
How we countFrom FEC filings, Voteview roll calls and Congress.gov.
Democrat. In Congress since 2003, 9 terms in total.
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Bills and resolutions Van Hollen signed on to as a cosponsor. An original cosponsor signed on the day the bill was introduced. Source: govinfo bill status files, last updated Nov 6, 2026.
Van Hollen also withdrew as a cosponsor from 2 bills, not listed here.
A resolution designating the week beginning September 7, 2025, as "National Direct Support Professionals Week".
Sponsor Susan Collins (R). Original cosponsor. 1 cosponsor. S.Res. 453 on Congress.gov
Passed the Senate
This resolution designates the week of September 7, 2025, as National Direct Support Professionals Week.
Nancy Gardner Sewell Medicare Multi-Cancer Early Detection Screening Coverage Act
Sponsor Mike Crapo (R). Joined Oct 14, 2025. 68 cosponsors. S. 339 on Congress.gov(opens in a new tab)
Introduced
Nancy Gardner Sewell Medicare Multi-Cancer Early Detection Screening Coverage Act
This bill allows, beginning in 2028, for Medicare coverage and payment for multi-cancer early detection screening tests that are approved by the Food and Drug Administration and that are used to screen for cancer across many cancer types, if the Centers for Medicare & Medicaid Services determines such coverage is appropriate. Coverage is limited to those under a certain age (age 68 in 2028, increased by one year every year thereafter) and to one test every 11 months.
Special Diabetes Program Reauthorization Act of 2025
Sponsor Susan Collins (R). Joined Oct 14, 2025. 34 cosponsors. S. 2211 on Congress.gov(opens in a new tab)
Introduced
A resolution designating the week beginning on October 12, 2025, as "National Wildlife Refuge Week".
Sponsor Christopher Coons (D). Original cosponsor. 14 cosponsors. S.Res. 449 on Congress.gov(opens in a new tab)
Passed the Senate
This resolution designates the week beginning on October 12, 2025, as National Wildlife Refuge Week.
The resolution acknowledges the importance of national wildlife refuges for their recreational opportunities and contribution to local economies.
Finally, the resolution reaffirms the support of the Senate for wildlife conservation and the National Wildlife Refuge System.
A resolution designating October 1, 2025, as "Energy Efficiency Day" in celebration of the economic and environmental benefits that have been driven by private sector innovation and Federal energy efficiency policies.
Sponsor Jeanne Shaheen (D). Original cosponsor. 19 cosponsors. S.Res. 448 on Congress.gov(opens in a new tab)
Passed the Senate
This resolution designates October 1, 2025, as Energy Efficiency Day.
Voter Purge Protection Act
Sponsor Alex Padilla (D). Original cosponsor. 26 cosponsors. S. 2994 on Congress.gov(opens in a new tab)
Introduced
A resolution expressing concern about the growing problem of book banning, and the proliferation of threats to freedom of expression in the United States.
Sponsor Brian Schatz (D). Original cosponsor. 19 cosponsors. S.Res. 443 on Congress.gov(opens in a new tab)
Introduced
A joint resolution to direct the removal of United States Armed Forces from hostilities that have not been authorized by Congress.
Sponsor Adam Schiff (D). Joined Oct 8, 2025. 8 cosponsors. S.J.Res. 83 on Congress.gov(opens in a new tab)
Introduced
DeOndra Dixon INCLUDE Project Act of 2026
Sponsor John Hickenlooper (D). Joined Oct 8, 2025. 9 cosponsors. S. 1838 on Congress.gov(opens in a new tab)
Passed the Senate
Federal Employees Civil Relief Act
Sponsor Brian Schatz (D). Original cosponsor. 19 cosponsors. S. 2982 on Congress.gov(opens in a new tab)
Introduced
Federal Employees Civil Relief Act
This bill establishes a framework to temporarily suspend certain judicial and administrative proceedings against a federal employee or contractor during a shutdown.
Under the bill, a shutdown is a period in which (1) there is more than a 24-hour lapse in appropriations for any federal agency or department because a regular appropriations bill or a continuing resolution has not been enacted, or (2) the debt of the federal government is greater than the statutory limit.
A federal worker (i.e., an employee of a government agency or contractor) who is furloughed or required to work without pay during a shutdown may apply to a court for a temporary stay, postponement, or suspension with respect to any payment of rent, mortgage, tax, fine, penalty, insurance premium, student loan repayment, or other civil obligation or liability that the worker owes or would owe during the duration of the shutdown.
The bill includes related provisions that restrict evictions, foreclosures, the enforcement of liens, and the termination of insurance policies during a shutdown. It also provides for the deferral of federal income taxes and student loan payments during a shutdown.
The Department of Justice may commence a civil action against any person who engages in (1) a pattern or practice of violating the requirements of this bill, or (2) a violation that raises an issue of significant public importance. A person aggrieved by a violation of this bill's requirements may also bring a private right of action.
FAST Justice Act
Sponsor Richard Blumenthal (D). Original cosponsor. 13 cosponsors. S. 2977 on Congress.gov(opens in a new tab)
Introduced
A resolution expressing support for the designation of September 2025 as "National Prostate Cancer Awareness Month".
Sponsor Mike Crapo (R). Original cosponsor. 3 cosponsors. S.Res. 436 on Congress.gov(opens in a new tab)
Passed the Senate
Emergency Relief for Federal Workers Act of 2025
Sponsor Timothy Kaine (D). Original cosponsor. 18 cosponsors. S. 2966 on Congress.gov(opens in a new tab)
Introduced
No Argentina Bailout Act
Sponsor Elizabeth Warren (D). Original cosponsor. 19 cosponsors. S. 2965 on Congress.gov(opens in a new tab)
Introduced
No Argentina Bailout Act
This bill prohibits the use of the Exchange Stabilization Fund (ESF) to provide financial support to Argentina. (The ESF is an emergency reserve fund of the Department of the Treasury originally used for the purpose of maintaining the fixed dollar exchange rate. In October 2025, Treasury announced U.S. financial support for Argentina, including a $20 billion currency swap line financed through the ESF.)
Specifically, the bill prohibits the use of the ESF to provide direct or indirect financial support to Argentina, including through the establishment of currency swap lines, the purchase of pesos or sovereign debt of Argentina, or the extension of any credit instrument. This prohibition terminates on December 10, 2027.
Any financial contract or instrument that was entered into before the bill's enactment and violates the prohibition must be sold or terminated within seven days of the bill's enactment.
Emergency Relief for Federal Contractors Act of 2025
Sponsor Catherine Cortez Masto (D). Original cosponsor. 14 cosponsors. S. 2964 on Congress.gov(opens in a new tab)
Introduced
Fair Pay for Federal Contractors Act of 2025
Sponsor Tina Smith (D). Original cosponsor. 35 cosponsors. S. 2963 on Congress.gov(opens in a new tab)
Introduced
Fair Pay for Federal Contractors Act of 2025
This bill provides back pay to employees of federal contractors who lost pay due to a lapse in appropriations (i.e., government shutdown) in FY2026.
Specifically, the bill provides appropriations for federal agencies that are subject to a lapse in appropriations in FY2026 to adjust the price of contracts to compensate federal contractors for providing back pay to employees who were affected by the lapse in appropriations.
The agencies must adjust the price of any contract for which the contractor stopped, suspended, delayed, or interrupted all or part of the work under the contract due to the lapse in appropriations. The price adjustment must compensate the contractor for reasonable costs incurred to (1) compensate employees who were furloughed or laid off, were not working, or experienced a reduction of hours or compensation due to the lapse in appropriations; or (2) restore paid leave taken by employees during the lapse in appropriations if the contractor required or permitted employees to use paid leave as a result of the lapse in appropriations.
The maximum amount of weekly compensation of an employee for which an adjustment may be made under this bill may not exceed the lesser of (1) the employee's actual weekly compensation, or (2) $1,442 (or a lesser amount pro-rated for an employee who works less than 40 hours per week).
The bill also requires the Office of Federal Procurement Policy to submit a report to Congress on the adjustments made under this bill.
A resolution recognizing Hispanic Heritage Month and celebrating the heritage and culture of Latinos in the United States and the immense contributions of Latinos to the United States.
Sponsor Catherine Cortez Masto (D). Original cosponsor. 37 cosponsors. S.Res. 428 on Congress.gov(opens in a new tab)
Passed the Senate
A resolution affirming the unwavering commitment of the Senate to the First Amendment and to freedom of speech and of the press as foundations of the democratic republic of the United States.
Sponsor Jeff Merkley (D). Original cosponsor. 6 cosponsors. S.Res. 424 on Congress.gov(opens in a new tab)
Introduced
A resolution recognizing the seriousness of polycystic ovary syndrome (PCOS) and expressing support for the designation of September 2025 as "PCOS Awareness Month".
Sponsor Elizabeth Warren (D). Original cosponsor. 7 cosponsors. S.Res. 422 on Congress.gov(opens in a new tab)
Passed the Senate
This resolution expresses support for designating September 2025 as PCOS Awareness Month. Polycystic ovary syndrome (PCOS) is caused by a hormone imbalance and can cause symptoms such as infertility, weight gain, excess hair growth, and acne.
A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Centers for Medicare & Medicaid Services relating to "Patient Protection and Affordable Care Act; Marketplace Integrity and Affordability".
Sponsor Mark Warner (D). Original cosponsor. 43 cosponsors. S.J.Res. 84 on Congress.gov(opens in a new tab)
Introduced
This joint resolution nullifies the rule titled Patient Protection and Affordable Care Act; Marketplace Integrity and Affordability, which was issued by the Centers for Medicare & Medicaid Services on June 25, 2025.
The rule makes several changes to enrollment requirements for health insurance exchanges, including (1) requiring annual open enrollment periods for all exchanges to begin by November 1 and end by December 31, (2) requiring all exchanges to conduct pre-enrollment verification of eligibility for at least 75% of new enrollments through special enrollment periods, and (3) prohibiting Deferred Action for Childhood Arrivals (DACA) recipients from enrolling in plans through exchanges or in state Basic Health Programs (state programs for certain low-income residents).
The rule also prohibits individual and small group health insurers from covering certain sex-trait modification procedures as an essential health benefit.
Help FEDS Act
Sponsor Angela Alsobrooks (D). Original cosponsor. 6 cosponsors. S. 2948 on Congress.gov(opens in a new tab)
Introduced
CIVICS Act of 2025
Sponsor Angus King (I). Joined Sep 30, 2025. 5 cosponsors. S. 2841 on Congress.gov(opens in a new tab)
Introduced
A resolution expressing support for the continued value of arms control agreements and negotiated constraints on Russian and Chinese strategic nuclear forces.
Sponsor Edward Markey (D). Joined Sep 29, 2025. 18 cosponsors. S.Res. 61 on Congress.gov(opens in a new tab)
Introduced
This resolution condemns Russia's nuclear escalatory rhetoric and implied threats on the potential use of nuclear weapons in the context of its invasion of Ukraine. The resolution also (1) condemns Russia's purported suspension of participation in the New START Treaty, (2) emphasizes the value of arms control agreements between the United States and Russia, and (3) calls on the administration to continue pursuing nuclear arms control and risk reduction with Russia and China.
A resolution expressing support for the designation of the week of September 20 through September 27, 2025, as "National Estuaries Week".
Sponsor Sheldon Whitehouse (D). Original cosponsor. 30 cosponsors. S.Res. 418 on Congress.gov(opens in a new tab)
Passed the Senate
This resolution expresses support for the designation of National Estuaries Week.
A resolution calling on the President to recognize a demilitarized State of Palestine, as consistent with international law and the principles of a two-state solution, alongside a secure State of Israel.
Sponsor Jeff Merkley (D). Original cosponsor. 9 cosponsors. S.Res. 410 on Congress.gov(opens in a new tab)
Introduced