Sen. Joe Manchin Joseph (Joe) ManchinThe Hill's Morning Report - Sponsored by Facebook - Trump, GOP allies prepare for SCOTUS nomination this week Trump meets with potential Supreme Court pick Amy Coney Barrett at White House Names to watch as Trump picks Ginsburg replacement on Supreme Court MORE (D-W.Va.) said Tuesday he will vote to confirm William Barr as attorney general, making him the second Democrat to back President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE's nominee.

“Today I will vote to confirm William Barr to be the next Attorney General because he is well-qualified and I am confident that he will faithfully execute the duties of the chief law enforcement officer of the United States of America,” Manchin wrote in a tweet.

Today I will vote to confirm William Barr to be the next Attorney General because he is well-qualified and I am confident that he will faithfully execute the duties of the chief law enforcement officer of the United States of America. — Senator Joe Manchin (@Sen_JoeManchin) February 12, 2019

Manchin’s decision comes as the Senate is poised to take an initial vote on Barr’s nomination later Tuesday.

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Barr, who previously served as attorney general under former President George H.W. Bush, will need to get a simple majority of the Senate to overcome the hurdle and ultimately be confirmed.

Though Democrats have raised concerns about Barr’s views on executive power and 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 Russia investigation — after Barr sent an unsolicited memo criticizing the probe — they are unlikely to be able to block his nomination.

With 47 seats, Democrats would have needed to flip four Republicans and keep their own caucus united.

Though Sen. Rand Paul Randal (Rand) Howard PaulSecond GOP senator to quarantine after exposure to coronavirus GOP senator to quarantine after coronavirus exposure The Hill's Morning Report - Sponsored by National Industries for the Blind - Trump seeks to flip 'Rage' narrative; Dems block COVID-19 bill MORE (Ky.) became the first Republican to announce he would oppose Barr, Manchin is the second Democrat to say he will confirm him.

Sen. Doug Jones (D-Ala.), who is up for reelection in 2020, became the first Democrat to announce support for Barr last week.