Donald Trump on Sunday morning bashed Rep. Trey Gowdy (R-SC), the chair of the House Select Committee on Benghazi, following reports that the congressman will soon endorse Sen. Marco Rubio (R-FL) for the Republican presidential nomination.

Trump criticized Gowdy’s performance at an October hearing with Hillary Clinton on the 2012 attack in Benghazi, Libya, during an appearance on “Fox and Friends.”

“His hearings were a disaster. Everybody was looking forward to something that was going to be really productive. And he didn’t win with those hearings. It was a total not-good for Republicans and for the country,” Trump said, according to Business Insider.

“I mean, beyond Republicans it was very bad for the country,” he continued, according to Business Insider. “So I hope he does a lot better for Marco than he did for the Benghazi hearings. Because they were not good. That was not a pretty picture.”

Townhall and Bloomberg Politics reported that Gowdy is expected to endorse Rubio. And Rubio’s presidential campaign announced that Gowdy will join the senator on the campaign trail in Iowa this week, according to Reuters.

“Marco is a rock solid conservative and a strong leader we can trust. I look forward to campaigning in Iowa with him, and introducing my good friend to voters across the state,” Gowdy said in a statement, according to Reuters.