House Majority Leader Kevin McCarthy Kevin Owen McCarthyMcCarthy threatens motion to oust Pelosi if she moves forward with impeachment Kate Schroder in Ohio among Democratic challengers squelching GOP hopes for the House McCarthy's Democratic challenger to launch first TV ad highlighting Air Force service as single mother MORE (Calif.) and other top Republicans are calling on President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE to name Rep. John Ratcliffe John Lee RatcliffeDemocrats call for declassifying election threats after briefing by Trump officials Overnight Defense: Top admiral says 'no condition' where US should conduct nuclear test 'at this time' | Intelligence chief says Congress will get some in-person election security briefings FBI chief says Russia is trying to interfere in election to undermine Biden MORE (R-Texas) as the next attorney general.

"Look, it's the president's choice ... but one thing I know is John Ratcliffe probably has the best abilities to do the job and most knowledge to do the job," McCarthy told The Hill on Friday.

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Ratcliffe, a former U.S. attorney for the Eastern District of Texas, is one of several people mentioned as possible contenders to succeed Jeff Sessions Jefferson (Jeff) Beauregard SessionsGOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status MORE, who resigned under pressure from Trump last week. Other names in the mix include Florida Attorney General Pam Bondi and former New Jersey Gov. Chris Christie.

Trump picked Matthew Whitaker to serve as acting attorney general, a move that has come under criticism in part because of Whitaker's public bashing of special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's investigation.

Other Republicans in the House are also backing Ratcliffe, a member of the House Judiciary Committee.

"He is a very bright lawyer. He's been a U.S. attorney. He's done federal prosecution. He knows the law as well as anybody," said Rep. Mike Johnson James (Mike) Michael JohnsonReclaiming the American Dream LWCF modernization: Restoring the promise Mike Johnson to run for vice chairman of House GOP conference MORE (R-La.), who was elected on Friday to chair the Republican Study Committee (RSC), the largest conservative caucus in Congress. "He's one of the sharpest members of the House Judiciary Committee in recent years. And I think he would serve the country very well."

Rep. Mark Walker Bradley (Mark) Mark WalkerJoe Biden has long forgotten North Carolina: Today's visit is too late Mike Johnson to run for vice chairman of House GOP conference The Hill's Morning Report - Sponsored by National Industries for the Blind - Woodward book revelations rock Washington MORE (R-N.C.), the outgoing RSC chairman, echoed Johnson's remarks, stating that he could not think of someone "more qualified" to be attorney general.

Rep. Mark Meadows Mark Randall MeadowsThe Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November House moves toward spending vote after bipartisan talks House Democrats mull delay on spending bill vote MORE (R-N.C.), head of the ultraconservative House Freedom Caucus, said while the decision should come down to who the president believes can best serve him, Ratcliffe would be a strong choice.

"Certainly, having served with Congressman Ratcliffe and having an understanding of how deliberative and purposeful he is with his questions and thoughts that he would make an outstanding AG," Meadows said.

Other top Republicans declined to weigh in on the matter.

"I think there are a lot of good people in the mix right now," said Rep. Steve Scalise Stephen (Steve) Joseph ScaliseHouse GOP slated to unveil agenda ahead of election House panel details 'serious' concerns around Florida, Georgia, Texas, Wisconsin elections Scalise hit with ethics complaint over doctored Barkan video MORE (R-La.), who was recently elected to serve as the House minority whip during the next Congress. McCarthy was elected to serve as leader.

"Ultimately, this is a decision by President Trump. And I have full confidence he is going to make the best choice," Scalise told The Hill.

Over the last year, Ratcliffe has been deeply involved in the House Judiciary and Oversight and Government Reform panels' joint investigation into FBI and Department of Justice conduct during the 2016 election.

He is often seen walking the halls with Oversight Chairman Trey Gowdy Harold (Trey) Watson GowdySunday shows preview: Election integrity dominates as Nov. 3 nears Tim Scott invokes Breonna Taylor, George Floyd in Trump convention speech Sunday shows preview: Republicans gear up for national convention, USPS debate continues in Washington MORE (R-S.C.), a close friend who has dismissed claims that he is also seeking to become — or is under consideration for — attorney general.

Republicans have voiced concern over whether Bondi or Christie could win Senate confirmation.

It is unclear when Trump will pick a permanent successor to Sessions.

Scott Wong contributed.