Senate Majority Leader Mitch McConnell said Monday at a campaign event in Owensboro, Ky., that socialism is “pervasive” among his Democratic colleagues, urging supporters to support the Republican ticket down the ballot in 2020.

“I don’t want you to think this is a couple of nutcases running around the fringe,” McConnell said to a crowd of local business leaders as he kicked off his own 2020 reelection campaign. The Senate majority leader was joined by Rep. Brett Guthrie, R-Ky., at the event.