Sen. Tim Johnson (D-SD), chairman of the Senate Banking Committee, will not run for re-election in 2014, Reuters reported Monday. Johnson is expected to announce his retirement at a press conference Tuesday.
Johnson, 66, joined the Senate in 1997 and has been widely expected to retire at the end of his term. He plans to make the announcement on Tuesday, the sources said. Johnson’s staff said that he will hold a press conference at the University of South Dakota on Tuesday.
His retirement would leave a vacant seat in a conservative-leaning state that could be difficult for Democrats to defend as they try to protect their majority in the Senate.