GOP congressman demands Mueller firing: It's time 'to put up or shut up'

Rep. Matt Gaetz recently traveled with President Trump aboard Air Force One.

“Congress has an obligation to expose what I believe is a corrupt investigation and I call on my Republican colleagues to join me in firing Bob Mueller,” Gaetz, R-Fla. said in an interview with CNN’s Chris Cuomo this morning. “It’s time for Mueller to put up or shut up. If there’s evidence of collusion with Russia, let’s see it.”

However, the White House has indicated it has not ruled it out as a possible move the president could make.

“There is no intention or plan to make any changes in regards to the special counsel,” White House Press Secretary Sarah Sanders said in October.

Rosenstein, who appointed Muller to handle the investigation, offered a strong defense of the special counsel during his testimony before the House Judiciary Committee Wednesday.

“I think it would be very difficult... for anybody to find somebody better qualified for this job,” Rosenstein said. “Director Mueller has throughout his lifetime been a dedicated and respected and heroic public servant.”

Gaetz has argued that the special counsel's team has been "infected" with "intractable bias" against Trump.

In a phone interview with ABC News earlier this week, Gaetz said during that flight, Trump encouraged his oversight of the Department of Justice.

"I did let him know that we had Mr. Rosenstein come before the Judiciary Committee this week," he recalled to ABC News on Tuesday, ahead of Rosenstein’s Wednesday testimony before the House Judiciary Committee. "He simply encouraged Mr. DeSantis and I in very broad terms to continue exercise our oversight functions."

When asked about Robert Mueller being a Republican, Gaetz said Trump's "movement is a very unique coalition, and there are a lot of Republicans that aren’t a member of it."

Democrats and a number of prominent Republicans in Congress have publicly advised the against firing Mueller — some even supporting proposed legislation to protect the special counsel and ensure the investigation is completed.