President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE intends to nominate Mark Esper Mark EsperOvernight Defense: Stopgap spending measure awaits Senate vote | Trump nominates former Nunes aide for intelligence community watchdog | Trump extends ban on racial discrimination training to contractors, military Overnight Defense: Pentagon redirects pandemic funding to defense contractors | US planning for full Afghanistan withdrawal by May | Anti-Trump GOP group puts ads in military papers Official: Pentagon has started 'prudent planning' for full Afghanistan withdrawal by May MORE to permanently lead the Defense Department, the White House announced Friday night.

Esper, who is currently the secretary of the Army, was selected by Trump earlier this week to serve as acting Defense secretary starting Monday. The White House said in a statement Friday that Trump had announced his "intent" to formally nominate Esper to the post.

Trump's plan to put Esper forward for Senate confirmation comes after Patrick Shanahan Patrick Michael ShanahanHouse Armed Services chairman expresses confidence in Esper amid aircraft carrier coronavirus crisis Boeing pleads for bailout under weight of coronavirus, 737 fallout Esper's chief of staff to depart at end of January MORE, who led the Pentagon in an acting capacity since January, withdrew this week from consideration to lead the department on a permanent basis.

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Esper was confirmed as Army secretary by the Senate 89-6 in the fall of 2017, though it is unclear what path his forthcoming nomination will take in the upper chamber given the uncertainty surrounding the top leadership post in recent months.

A former infantry officer, Esper previously served as a top executive at the defense contractor Raytheon before joining the Trump administration in 2017. He would be Trump's second permanent Defense secretary if confirmed by the Senate, after James Mattis James Norman MattisBiden courts veterans amid fallout from Trump military controversies Trump says he wanted to take out Syria's Assad but Mattis opposed it Gary Cohn: 'I haven't made up my mind' on vote for president in November MORE.

Mattis left the administration late last year, and Shanahan, a former longtime Boeing executive who was deputy secretary at the Pentagon, has served as acting head of the department since then.

Trump had said he planned to nominate Shanahan to lead the Pentagon on a permanent basis, but never officially sent the nomination to the Senate. On Tuesday, the president announced Shanahan's abrupt withdrawal from consideration for the post, saying he wanted to "devote more time to his family."

The announcement came as reports emerged detailing multiple instances of past domestic violence involving Shanahan's family.

Shanahan said in a statement that going forward with the confirmation process “would force my three children to relive a traumatic chapter in our family’s life and reopen wounds we have worked years to heal.”

Senators said they were caught off guard by Shanahan’s withdrawal, but expressed support for Esper’s reported nomination, which comes amid rising tensions with Iran over the downing of a U.S. surveillance drone earlier this week.

Sen. Lindsey Graham Lindsey Olin GrahamSteele Dossier sub-source was subject of FBI counterintelligence probe Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Key Democrat opposes GOP Section 230 subpoena for Facebook, Twitter, Google MORE (R-S.C.) earlier this week called Esper an “excellent choice” to lead the Pentagon and “confirmable.”

“I think a lot of Mark Esper,” Sen. James Inhofe James (Jim) Mountain InhofeChamber of Commerce endorses McSally for reelection 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 Top admiral: 'No condition' where US should conduct nuclear test 'at this time' MORE (R-Okla.) said. “I’ve watched his style of working with the troops. He does really a good job.”

However, Esper’s lobbying past could bring up potential concerns over conflicts of interest.

Citizens for Responsibility and Ethics in Washington (CREW) executive director Noah Bookbinder said in a statement that Esper “risk[s] being tainted by his previous work for a major defense contractor." The group’s allegations against Shanahan in part prompted an inspector general investigation earlier this year that eventually cleared him.

The White House put forward Esper's name to lead the Pentagon as the possibility of U.S. military action against Iran loomed large Friday after the president said he decided to call off an overnight strike against the country due to concerns about casualties.

In addition to Esper, the White House on Friday also announced that David Norquist would be tapped as deputy Defense secretary. Norquist has served as Under Secretary of Defense and as the Pentagon's chief financial officer since 2017.

Ryan McCarthy, the current Under Secretary of the Army and a former airborne ranger, is also expected to nominated by Trump to lead the military service, succeeding Esper.

– Tal Axelrod contributed