Of the 33 Senate seats up for election next term, 21 are held by Democrats, 2 by Democratic-leaning Independents, and only 10 by Republicans. That makes for a tough election cycle. The best way for Democrats to survive 2024’s lopsided Senate map is to get as many of their battle-tested incumbents as possible to run again.
Not all have decided or announced their intentions to run.
Democrat - WI
In 1998, Wisconsin’s 2nd Congressional District shattered the state’s glass ceiling and elected Tammy as the state’s first female member of Congress and the nation’s first openly gay challenger sent to Congress. She has served on the Budget Committee, the Judiciary Committee, and the Energy and Commerce Committee.
Democrat - OH
Since January 2007, Sherrod Brown has been a champion of middle-class families in the Senate.
Democrat - WA
Elected to the Senate in 2000, 2006, 2012, and 2018, Maria has pledged to honor the hard work, aspirations, and faith of the people of Washington state. Maria is working to create affordable opportunities for consumers, businesses, and families, to make our nation more secure, and to foster innovation for tomorrow.
Democrat - MD
First elected to the senate in 2006, Senator Cardin currently serves as Chair of the Small Business & Entrepreneurship Committee, which is at the forefront of rebuilding our economy. He is a senior member of the Senate Foreign Relations, Finance, and Environment & Public Works committees.
Democrat - DE
First elected to the senate on January 3, 2001, Tom became Delaware’s senior senator with his reelection in November 2018. In the Senate, Tom has been a leader in improving our healthcare system and protecting our environment. As the Chairman of the Senate Committee on Environment and Public Works, Senator Carper helps lead the fight to address the climate change crisis.
Democrat - PA
Bob Casey Jr.
Since he was elected to the United States Senate in 2006, Bob has fought for the needs of workers, children, and families in the Commonwealth and across the Nation. Senator Casey the Finance Committee, the HELP Committee, and the Select Committee on Intelligence, and is also the Chairman of the Special Committee on Aging.
Democrat - CA
Since her election to the Senate in 1992, Senator Feinstein has worked in a bipartisan way to build a significant record of legislative accomplishments helping strengthen the nation's security both here and abroad, combat crime and violence, battle cancer, and protect natural resources in California and across the country.
Democrat - NY
Gillibrand was first appointed to the Senate in 2009 to fill the seat vacated by Hillary Clinton's appointment to secretary of state. She won re-election in 2018. Senator Kirsten Gillibrand's top priorities in the United States Senate include creating more well-paying jobs to rebuild the middle class, increasing access to good, affordable healthcare, and improving educational opportunities from pre-k to college or vocational training.
Democrat - NM
Prior to being elected to the U.S. Senate, Heinrich served two terms in the U.S. House of Representatives. In the House, Heinrich voted to cut taxes for the middle class, worked to make college more affordable, improved benefits for veterans, opposed cuts to Social Security and Medicare, and championed the DREAM Act as an original cosponsor. Heinrich authored the HEARTH Act to remove barriers to homeownership for American Indian families and led the effort in Congress to reauthorize the Indian Health Care Improvement Act.
Democrat - HI
After three terms as a member of the House, representing Hawaii's 2nd District, Hirono was elected to the Senate in 2012, becoming both the first female senator from Hawaii and the first Asian-American woman elected to the Senate, a position she still holds today. Efforts to take away health care, slash funding for public schools, or undermine the civil rights that so many rely on are things that she has strongly opposed and fought against.
Democrat - VA
Tim Kaine was elected to the Senate in 2012 and serves on the Armed Services; Budget; Foreign Relations; and Health, Education, Labor, and Pensions (HELP) Committees. Tim believes that health care is a right, not something reserved just for those who can afford it, and has consistently pushed for reforms to expand access to quality care. As the father of a Marine, Tim has worked to ensure that the military has the resources it needs to keep the country safe and that servicemembers and veterans receive the benefits and care they have earned.
Democrat - MN
Since arriving in the Senate in 2007, Senator Klobuchar has worked with Democrats and Republicans to get things done. She led the effort to pass legislation to end human trafficking and combat the opioid epidemic. She fought to pass the most significant consumer product safety legislation in a generation, to expand access to broadband, support food assistance programs, and introduced legislation to encourage the use of renewable fuels and invest in data related to farming and agriculture to inform best practices.
Democrat - WV
From his days as a state legislator to his six years as Governor to his current role, Joe Manchin has always been committed to his philosophy of "retail government" in other words, connecting with all of his constituents and making service to them his top priority. He believes we must find commonsense ways to cut spending while keeping our promises to our seniors and veterans by protecting Social Security and Medicare.
Democrat - NJ
Elected to the U.S. House of Representatives by the 13th District in New Jersey in 1992, Bob became a powerful voice on issues such as immigration, national security, and the interests of working families. In 2006, New Jersey's governor appointed him to the U.S. Senate, and was elected to a full six-year term in November; he was reelected in 2012 and 2018. Bob has fought tirelessly for the American people.
Democrat - CT
First elected to the Senate in 2013, Chris, has dedicated his career to public service as an advocate for Connecticut families. Senator Murphy has been a strong voice fighting for job creation, affordable health care, education, sensible gun laws, and a forward-looking foreign policy.
Democrat - NV
Elected to the U.S. House in 2016 and then the U.S. Senate in 2018, Jackie knows that health care is the key that makes other opportunities possible, she has worked to bring down the rising cost of health care and prescription drugs. Jacky has been a champion for strengthening our nation’s cybersecurity and improving science, technology, engineering, and math (STEM) education. The proud daughter of a World War II veteran, Jacky is standing up for Nevada’s veterans and expanding access to the benefits our nation’s heroes have earned.
Democrat - AZ
As Arizona's first woman Senator, Kyrsten works every day to deliver for Arizona families – helping veterans get the benefits they’ve earned, creating good–paying jobs, and keeping Americans safe.
Democrat - MI
Debbie Stabenow made history in 2000 when she became the first woman from Michigan elected to the United States Senate. She is known for her ability to build coalitions to get things done for Michigan and our nation. Today, Debbie is Michigan’s senior U.S. Senator and a member of Senate leadership. In the wake of the Flint water crisis, she led efforts to pass $170 million in assistance for Flint to repair and replace pipes and to address critical health needs. As Chairwoman of the Senate Finance Subcommittee on Health Care, she is a champion for Medicare, Medicaid, and the Children’s Health Insurance Program.
Democrat - MT
U.S. Senator Jon Tester is a third-generation Montana farmer, a proud grandfather, and a former school teacher. He is the Chairman of the Senate Veterans Affairs Committee and Chairman of the Senate Appropriations Subcommittee on Defense. He also serves on the Senate Banking Committee, the Senate Commerce Committee, and the Senate Committee on Indian Affairs.
Democrat - MA
Elizabeth Warren, a fearless consumer advocate who has made her life's work the fight for middle-class families, was re-elected to the United States Senate for a second term on November 6, 2018, by the people of Massachusetts.
Elizabeth is one of the nation’s leading progressive voices, fighting for big structural change that would transform our economy and rebuild the middle class.
Democrat - RI
Sheldon Whitehouse has earned a reputation in the Senate as a fierce advocate for progressive values and a thoughtful legislator capable of reaching across the aisle to achieve bipartisan solutions. Whitehouse has played a key role in crafting policies addressing climate change, and environmental protections. A staunch defender of Social Security and Medicare, and has made improving care and reducing costs in our health care system a hallmark of his career.
Independent - VT
Bernie Sanders is serving his third term in the U.S. Senate after winning re-election in 2018. His previous 16 years in the House of Representatives make him the longest-serving independent member of Congress in American history. Throughout his career, he has focused on the shrinking American middle class, growing income and wealth gaps, healthcare, affordable education, global warming, and rebuilding our nation’s crumbling infrastructure.
Independent - ME
In January 2013, Angus King was sworn in as Maine’s first Independent United States Senator. In his time in the Senate, King has worked to strengthen America’s national security, supported common-sense budget priorities that promote prosperity and reduce the national debt, fought the national opioid and heroin epidemic, advocated for policies that contribute to a cleaner, cheaper energy and mitigate climate change, railed against the corrosive effect of unchecked money in politics, fought to improve access to health care, worked to strengthen the government’s support of veterans, and promoted increased access to critical community resources like rural broadband.