Senate Minority Leader Mitch McConnell is officially filing his paperwork for re-election, and Kentucky's two other statewide-elected Republicans are lending their names to the effort.
McConnell's campaign says Senator Rand Paul and state Agriculture Commissioner James Comer will sign McConnell's papers today.
McConnell's campaign says it's releasing a new video that includes comments by Paul and Comer.
McConnell — the state's longest-serving senator — is seeking a sixth Senate term. He is facing a challenge in the GOP primary this spring from Louisville businessman Matt Bevin.
The Democratic front-runner in the race is Kentucky's secretary of state Alison Lundergan Grimes.