Democratic Sen. Cardin of Maryland announces retirement

FILE - Sen. Ben Cardin, D-Md., attends a news conference at the Capitol in Washington, Thursday, April 27, 2023. Cardin announced Monday, May 1, that he plans to retire at the end of his third term, triggering what is likely to be a highly competitive primary to replace him in the blue-leaning state. (AP Photo/J. Scott Applewhite, File)

ANNAPOLIS, Md. — Democratic Sen. Ben Cardin of Maryland announced he will not seek reelection at the end of his third term in 2024, triggering what is likely to be a highly competitive primary to replace him in the blue-leaning state. 

“I am proud of all I have done for Maryland. I have given my heart and soul to our great state, and I thank Marylanders for trusting me as your representative for all these years,” the 79-year-old said in a statement. 

Cardin has served in the Senate since 2006 when he won a seat to replace retiring Democrat Paul Sarbanes. Before that, he was a congressman who represented a large part of Baltimore and several nearby suburbs, winning his first U.S. House race in 1986. 

During his tenure in the Senate, Cardin worked on health care, retirement security, the environment and fiscal issues. The senator has also been a leading advocate for clean water and the Chesapeake Bay, the nation’s largest estuary, which flows through his home state.