Senate Majority Whip Richard J. Durbin will seek a fourth term, a source close to the Illinois Democrat confirmed.
The Chicago Tribune reported the news Friday afternoon.
Durbin is the second-ranking Senate Democrat. He is actively involved in immigration reform negotiations and recently took the gavel of the Appropriations Subcommittee on Defense.
This essentially keeps the seat in the Safe Democratic column. Had he not run, it might have been competitive, although Republicans have a relatively weak bench in the state.