Former GOP Rep. David Jolly (Fla.) tore into congressional Republicans over their defenses of President TrumpDonald TrumpBiden to move ahead with billion UAE weapons sale approved by Trump Fox News hires high-profile defense team in Dominion defamation lawsuit Associate indicted in Gaetz scandal cooperating with DOJ: report MORE against Democrats’ impeachment investigation, saying they “look like fools.” 

"What we’re seeing from House Republicans, frankly, is this childish behavior," he said on MSNBC on Saturday. "They’re displaying an arrogance, an anger, an immaturity — they look like fools."

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Republicans have railed against the House’s impeachment probe, with many saying the investigation is illegitimate since there has not yet been an official vote to start an inquiry.

However, they have also stayed relatively tight-lipped as to whether it was appropriate for Trump to ask Ukraine to investigate former Vice President Joe BidenJoe BidenIRS to roll out payments for ,000 child tax credit in July Capitol Police told not to use most aggressive tactics in riot response, report finds Biden to accompany first lady to appointment for 'common medical procedure' MORE, a request that is at the heart of the probe.

"What Republicans should be doing ... and I struggle with even saying this because they’re on the wrong side of history and I hate to give them counsel that I think is accurate. Stop arguing about the process. Stop doing the sit-ins. Stop doing the stupid stuff that is not believable," Jolly said. "Frankly, the American people don’t care about the process."

“From [Sen.] Lindsey GrahamLindsey Olin GrahamGOP lawmaker 'encouraged' by Biden's Afghanistan strategy Biden sparks bipartisan backlash on Afghanistan withdrawal  Graham: 'A full withdrawal from Afghanistan is dumber than dirt and devilishly dangerous' MORE’s [R-S.C.] stupidity to [Rep.] Matt GaetzMatthew (Matt) GaetzAssociate indicted in Gaetz scandal cooperating with DOJ: report Trump knocks CNN for 'completely false' report Gaetz was denied meeting The Hill's Morning Report - Presented by Tax March - Congress returns; infrastructure takes center stage MORE’s [R-Fla.] stupidity, get that to a concise argument,” he added, saying the focus should not be on the process but instead on some defense that says Trump’s behavior is unimpeachable. 

Republicans, particularly those in the House, have been vocal in their defense of the president, with a group of GOP lawmakers recently storming a secure room to interrupt a closed-door deposition. However, some critics have cast the efforts as overly theatrical and potentially damaging.

"In short, they have compromised the security of the room," Rep. Eric SwalwellEric Michael SwalwellTrump knocks CNN for 'completely false' report Gaetz was denied meeting Meghan McCain calls on Gaetz to resign Gaetz, on the ropes, finds few friends in GOP MORE (D-Calif.) told reporters. "And they not only brought in their unauthorized devices; they may have brought in the Russian and Chinese with electronics in a secure space."