McConnell voiced his concern on the heels of Republican Senator Thom Tillis announcing he will not see re-election.

Republican Sen. Mitch McConnell, the longest-serving party leader in Senate history, is throwing in the towel and will not run for re-election next year.

He’s got some pretty rabid isolationists over at [the Department of Defense] — you could argue the vice president is in that ...

McConnell has been a U.S. senator from Kentucky since 1985, and he announced one year ago that he would relinquish his leadership role in the Senate.

Senator Mitch McConnell (R-Ky.) ... while a person need only be at least 25 years old to be a U.S. House representative. Senators take office, on average, at the age of 51. ...

Sen. Mitch McConnell of Kentucky, ... McConnell has been a U.S. senator from Kentucky since 1985, and he announced one year ago that he would relinquish his leadership role in the Senate.