Montana Senator Jon Tester has announced his intention to seek a fourth term in the U.S. Senate, a key race for Democrats to maintain their slim majority in 2024. Tester, a 66-year-old farmer, has held the seat since 2007 and is the only statewide elected Democrat in Montana, a state that typically elects Republicans by double-digit margins. He has been a vocal advocate for veterans, and has pushed for legislation to reduce the cost of health care and prescription drugs.