BRIDGETON, MO - OCTOBER 31: Senator Claire McCaskill speaks to supporters at a "get out the vote" rally she held with former Vice President Joe Biden on October 31, 2018 in Bridgeton, Missouri. McCaskill is in a tight race with her Republican challenger Missouri Attorney General Josh Hawley. (Photo by Scott Olson/Getty Images)

ST. LOUIS (AP) — Missouri’s outgoing Democratic Sen. Claire McCaskill says she won’t run for another office, but will remain active in politics.

The St. Louis Post-Dispatch reported Wednesday that although McCaskill says she’ll never run again, she might help recruit or mentor Democratic candidates in Missouri.

She also warned that if more of her Senate colleagues don’t speak up on Special Counsel Robert Mueller’s investigation of Russian involvement in the 2016 election, they will face a “crisis.”

McCaskill lost a bid for a third term to Republican state Attorney General Josh Hawley last month. On Thursday, she will give her final Senate floor speech before she leaves office in January.