A Harvard constitutional law professor hit out at Mitch McConnell on Twitter after the GOP Senate majority leader revealed he would seek to fill any Supreme Court vacancy in 2020.

Laurence Tribe accused McConnell of hypocrisy in a concise yet blistering tweet that has gone viral.

McConnell infamously did not allow Merrick Garland, who was former President Barack Obama‘s Supreme Court nominee, a hearing in 2016 because he said it was too close to the presidential election.

“Hypocrisy is McTurtle’s middle name,” wrote Tribe. “And his first and last name too.”

“What a flagrant dickhead!” he added.