​​​​​​WASHINGTON

The US Senate advanced the nomination of Pete Hegseth for secretary of defense on Thursday.

In a 51-49 vote, the debate on his nomination was ended. A final confirmation vote is expected Friday.

Republican senators Lisa Murkowski and Susan Collins announced before the vote that they would vote against confirming Hegseth to lead the Pentagon, citing his past infidelity and allegations of sexual assault and excessive drinking.

"The leader of the Department of Defense must demonstrate and model the standards of behavior and character we expect of all servicemembers, and Mr. Hegseth’s nomination to the role poses significant concerns that I cannot overlook.

"Given the global security environment we’re operating in, it is critical that we confirm a Secretary of Defense, however, I regret that I am unable to support Mr. Hegseth," Murkowski said in a lengthy statement.

Collins is concerned that Hegset does not have the experience and perspective necessary to succeed in the role.

In addition to his controversial remarks about women in the military, Hegseth faced allegations of sexual assault stemming from a 2017 incident in California. Police investigated the claim but did not file charges.

Hegseth, 44, seen as one of Trump’s more controversial Cabinet nominees, also faces allegations of excessive drinking and financial mismanagement.