
U.S. Senator for Massachusetts
Democrat
Senate term end not loaded yet
Missed 0.8% 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 1975, 23 terms in total.
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Bills and resolutions Markey 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.
Markey also withdrew as a cosponsor from 1 bill, not listed here.
Stop Arctic Ocean Drilling Act of 2025
Sponsor Jeff Merkley (D). Original cosponsor. 6 cosponsors. S. 1445 on Congress.gov
Introduced
West Coast Ocean Protection Act of 2025
Sponsor Alex Padilla (D). Original cosponsor. 9 cosponsors. S. 1432 on Congress.gov(opens in a new tab)
Introduced
A resolution supporting the goals and ideals of the Rise Up for LGBTQI+ Youth in Schools Initiative, a call to action to communities across the United States to demand equal educational opportunity, basic civil rights protections, and freedom from erasure for all students, particularly LGBTQI+ young people, in K-12 schools.
Sponsor Brian Schatz (D). Original cosponsor. 9 cosponsors. S.Res. 168 on Congress.gov(opens in a new tab)
Introduced
American Family Act
Sponsor Michael Bennet (D). Original cosponsor. 44 cosponsors. S. 1393 on Congress.gov(opens in a new tab)
Introduced
BUMP Act
Sponsor Martin Heinrich (D). Original cosponsor. 30 cosponsors. S. 1374 on Congress.gov(opens in a new tab)
Introduced
Banning Unlawful Machinegun Parts Act or the BUMP Act
This bill generally prohibits the import, sale, manufacture, transfer, receipt, or possession of
• a device that is primarily designed, or redesigned, to increase the rate of fire when attached to a semiautomatic firearm;
• a device, part, or combination of parts that is designed and functions to increase the rate of fire of a firearm; or
• a semiautomatic firearm that has been modified to materially increase the rate of fire or to approximate the action or rate of fire of a machine gun.
Additionally, the bill adds to the list of firearms subject to regulation under the National Firearms Act semiautomatic firearms that have been modified to materially increase the rate of fire or approximate the action or rate of fire of a machine gun.
Tax Cut for Workers Act of 2025
Sponsor Catherine Cortez Masto (D). Original cosponsor. 44 cosponsors. S. 1372 on Congress.gov(opens in a new tab)
Introduced
GOSAFE Act
Sponsor Martin Heinrich (D). Original cosponsor. 21 cosponsors. S. 1370 on Congress.gov(opens in a new tab)
Introduced
Gas-Operated Semi-Automatic Firearms Exclusion Act or the GOSAFE Act
This bill establishes a framework to regulate gas-operated semiautomatic firearms and large capacity ammunition feeding devices under federal firearms laws.
First, the bill generally prohibits the import, sale, manufacture, transfer, receipt, or possession of
• a firearm that is or is modified to operate as a prohibited gas-operated semiautomatic firearm;
• a combination of parts that modify or can be assembled into a prohibited gas-operated semiautomatic firearm, or that produce an unlawful gas-operated semiautomatic cycling action;
• a device or combination of parts designed to materially increase the rate of fire of a semiautomatic firearm; or
• a firearm that is modified to materially increase the rate of fire.
Second, the bill generally prohibits (1) the import, sale, manufacture, transfer, or receipt of a large capacity ammunition feeding device; or (2) the possession of a large capacity ammunition feeding device manufactured after the date of enactment.
A violation is subject to criminal penalties—a fine, a prison term of up to 12 months, or both, for each violation.
In addition, an individual who possesses a prohibited gas-operated semiautomatic firearm during a federal felony offense is subject to additional penalties—a fine, a mandatory minimum prison term of two years, or both.
Finally, the bill allows a state or local government to use Edward Byrne Memorial Justice Assistance Grant Program funds to compensate individuals who surrender gas-operated semiautomatic firearms and large capacity ammunition feeding devices under a buy-back program.
Public Service Freedom to Negotiate Act of 2025
Sponsor Mazie Hirono (D). Original cosponsor. 38 cosponsors. S. 1352 on Congress.gov(opens in a new tab)
Introduced
Raise the Wage Act of 2025
Sponsor Bernie Sanders (I). Original cosponsor. 34 cosponsors. S. 1332 on Congress.gov(opens in a new tab)
Introduced
A resolution honoring the life of the Honorable John Bennett Johnston, Jr., former Senator for the State of Louisiana.
Sponsor Bill Cassidy (R). Original cosponsor. 99 cosponsors. S.Res. 159 on Congress.gov(opens in a new tab)
Passed the Senate
No Tax Breaks for Union Busting (NTBUB) Act
Sponsor Ben Luján (D). Original cosponsor. 29 cosponsors. S. 1310 on Congress.gov(opens in a new tab)
Introduced
No Tax Breaks for Union Busting (NTBUB) Act
This bill excludes from the tax deduction for ordinary and necessary business expenses amounts paid or incurred to influence employees with respect to labor organizations or labor organization activities. The bill also imposes information reporting requirements related to such expenses and imposes penalties for failure to comply.
Under the bill, amounts paid to influence employees with respect to labor organizations include amounts paid (including wages and other costs)
• in connection with an action that results in a complaint or settlement related to an unfair labor practice or a finding of interference, influence, or coercion related to railway employees’ rights to organize and bargain collectively;
• for any meeting or training attended by employees and at which labor organizations are discussed; and
• that require certain employer disclosures and financial reporting.
(Some exceptions apply.)
The bill requires employers to file a return reporting certain information related to expenses paid to influence employees with respect to labor organizations and imposes a penalty for noncompliance. The amount of the penalty is the greater of (1) $10,000, or (2) $1,000 multiplied by the number full-time equivalent employees. Additional penalties apply for violations that continue for more than 90 days.
The bill also imposes information reporting requirements on persons conducting activities on behalf of another person to influence employees with respect to labor organizations.
The bill allows certain penalties for noncompliance with the reporting requirements to be waived if noncompliance is due to reasonable cause and not willful neglect.
Fair Day in Court for Kids Act of 2025
Sponsor Mazie Hirono (D). Original cosponsor. 28 cosponsors. S. 1297 on Congress.gov(opens in a new tab)
Introduced
Fair Day in Court for Kids Act of 2025
This bill provides legal protections for a non-U.S. national (alien under federal law) who is detained or subject to immigration-related proceedings.
The Department of Justice (DOJ), or the Department of Health and Human Services (HHS) in a case involving an unaccompanied child, may appoint or provide counsel at the government's expense to non-U.S. nationals in removal proceedings and related appeals.
An unaccompanied child must be represented by counsel paid for and appointed by the government at every stage of such proceedings unless the child has obtained counsel at their own expense. If HHS fails to provide counsel to an unaccompanied child, the child's deadline for filing a motion to reopen a removal proceeding shall not apply, and the filing of such a motion shall stay the child's removal from the United States.
The Department of Homeland Security (DHS) must provide a complete copy of a non-U.S. national's immigration file to the non-U.S. national (or the non-U.S. national's counsel) within seven days of a notice to appear for an immigration proceeding, and failure to provide the file shall result in a delay in the proceeding.
DHS must provide access to counsel for all detained non-U.S. nationals.
The Office of Refugee Resettlement must develop model guidelines for representing non-U.S. national children in immigration proceedings.
HHS must annually report on the extent to which it has provided counsel for unaccompanied children under this bill.
Tax Fairness for Workers Act
Sponsor Tina Smith (D). Original cosponsor. 35 cosponsors. S. 1286 on Congress.gov(opens in a new tab)
Introduced
Building Child Care for a Better Future Act
Sponsor Ron Wyden (D). Original cosponsor. 11 cosponsors. S. 1285 on Congress.gov(opens in a new tab)
Introduced
IDEA Full Funding Act
Sponsor Chris Van Hollen (D). Original cosponsor. 40 cosponsors. S. 1277 on Congress.gov(opens in a new tab)
Introduced
A resolution designating April 2025 as "Second Chance Month".
Sponsor Amy Klobuchar (D). Original cosponsor. 7 cosponsors. S.Res. 149 on Congress.gov(opens in a new tab)
Passed the Senate
This resolution designates April 2025 as Second Chance Month to promote awareness of unnecessary legal and social barriers that prevent individuals with criminal records from becoming productive members of society.
Paying a Fair Share Act of 2025
Sponsor Sheldon Whitehouse (D). Original cosponsor. 15 cosponsors. S. 1243 on Congress.gov(opens in a new tab)
Introduced
Workplace Violence Prevention for Health Care and Social Service Workers Act
Sponsor Tammy Baldwin (D). Original cosponsor. 32 cosponsors. S. 1232 on Congress.gov(opens in a new tab)
Introduced
Savings Opportunity and Affordable Repayment Act
Sponsor Jeff Merkley (D). Original cosponsor. 17 cosponsors. S. 1220 on Congress.gov(opens in a new tab)
Introduced
Savings Opportunity and Affordable Repayment Act
This bill creates a new income-driven repayment plan for student loans called the Savings Opportunity and Affordable Repayment (SOAR) plan. The SOAR plan has similar provisions to, but further expands on, the Department of Education's (ED's) final rule published on July 10, 2023, that created the Saving on a Valuable Education (SAVE) plan. The SAVE plan was blocked by federal courts.
The bill directs ED to carry out a SOAR plan program that complies with specified requirements. The bill allows all federal student loan types to be eligible for repayment under the SOAR plan, including Parent PLUS Loans and Federal Family Education Loans.
Under the SOAR plan, a federal student loan borrower whose income is at or below 250% of the federal poverty level (FPL) has $0 monthly payments. A borrower whose income is over 250% of the FPL pays 5% of their discretionary income on loans obtained for undergraduate study and 10% of their discretionary income for all other outstanding loans (e.g., loans obtained for graduate study).
Additionally, under the SOAR plan, holders of eligible federal student loans (e.g., ED or private lenders) must apply 50% of the borrower's monthly payment toward outstanding principal. The other 50% must be applied in the following order: (1) accrued charges and collection costs on the loan, (2) outstanding interest, and (3) outstanding principal.
ED must forgive any loan balance that remains outstanding after a specified maximum repayment period (e.g., 10 years or 15 years).
A concurrent resolution supporting the goals and ideals of International Transgender Day of Visibility.
Sponsor Brian Schatz (D). Original cosponsor. 19 cosponsors. S.Con.Res. 11 on Congress.gov(opens in a new tab)
Introduced
Privacy Act Modernization Act of 2025
Sponsor Ron Wyden (D). Original cosponsor. 3 cosponsors. S. 1208 on Congress.gov(opens in a new tab)
Introduced
Privacy Act Modernization Act of 2025
This bill strengthens privacy protections that apply to personal data held or maintained by government agencies. These protections restrict the storage, access, use, and disclosure of personal data, such as an individual’s name or Social Security number.
Currently, these protections apply to U.S. citizens and permanent residents. The bill expands this to include natural persons in the United States and certain associations and corporations.
The bill places additional limits on the use and disclosure of such data, including by limiting the use of records to a legally authorized purpose and requiring disclosures to be minimal and consistent with a previously stated use.
The bill also increases existing penalties and creates additional criminal penalties for violations. For example, under the bill, an agency employee who willfully discloses individually identifiable information with the intent to sell, transfer, use, or disclose such information for commercial advantage, personal gain, or malicious harm shall be guilty of a felony and fined not more than $250,000, imprisoned for not more than 10 years, or both.
Courts may provide preliminary relief and, if the U.S. is found to have acted intentionally or willfully, the U.S. is liable for additional types of damages (e.g., punitive).
The bill generally takes effect two years after the date of enactment. However, the bill takes effect immediately upon enactment with respect to certain actions taken by the Department of Government Efficiency (DOGE), certain special or temporary employees, and other related individuals and organizations.
Hot Foods Act of 2025
Sponsor Michael Bennet (D). Original cosponsor. 12 cosponsors. S. 1202 on Congress.gov(opens in a new tab)
Introduced
Hot Foods Act of 2025
This bill expands the Supplemental Nutrition Assistance Program (SNAP) to permit the use of SNAP benefits to purchase hot foods or hot food products ready for immediate consumption.
America’s Red Rock Wilderness Act
Sponsor Richard Durbin (D). Joined Mar 31, 2025. 18 cosponsors. S. 1193 on Congress.gov(opens in a new tab)
Introduced
A resolution honoring the life of the Honorable Alan K. Simpson, former Senator for the State of Wyoming.
Sponsor John Barrasso (R). Original cosponsor. 99 cosponsors. S.Res. 148 on Congress.gov(opens in a new tab)
Passed the Senate
A resolution protecting the Iranian political refugees, including female former political prisoners, in Ashraf-3 in Albania.
Sponsor Thomas Tillis (R). Original cosponsor. 18 cosponsors. S.Res. 145 on Congress.gov(opens in a new tab)
Introduced