The campaigns representing Kentucky Republicans Mitch McConnell and Matt Bevin have been trading barbs over Twitter in the wake of a McConnell attack ad questioning Bevin’s ties to the Massachusetts Institute of Technology.

“I wonder what McConnell has on his LinkedIn page. Oh, wait, he’s never had a job in the private sector so why would he need one,” Bevin’s Twitter page jabbed in response.

The McConnell camp countered with it’s own mocking online comment saying in Bevin’s view “it’s OK to list degrees from schools you never attended on your resume?”

But now the ultimate trash talker—billionaire birther real estate mogul, reality TV star and McConnell donor Donald Trump—weighed in with an uppercut.