Former GOP Rep. David Jolly (Fla.) tore into congressional Republicans over their defenses of President TrumpDonald TrumpTrump hails Arizona Senate for audit at Phoenix rally, slams governor Arkansas governor says it's 'disappointing' vaccinations have become 'political' Watch live: Trump attends rally in Phoenix 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 BidenTrump hails Arizona Senate for audit at Phoenix rally, slams governor Republicans focus tax hike opposition on capital gains change Biden on hecklers: 'This is not a Trump rally. Let 'em holler' 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 GrahamSenate braces for a nasty debt ceiling fight Bipartisan group says it's still on track after setback on Senate floor How Sen. Graham can help fix the labor shortage with commonsense immigration reform MORE’s [R-S.C.] stupidity to [Rep.] Matt GaetzMatthew (Matt) GaetzLawmakers introduce bipartisan Free Britney Act Performance or performance art? A question for voters in 2022 (and 2024) Six takeaways: What the FEC reports tell us about the midterm elections 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 SwalwellTech executives increased political donations amid lobbying push Justice in legal knot in Mo Brooks, Trump case Mo Brooks's Jan. 6 defense raises questions about official immunity and DOJ strategy 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."