Conservative economics pundit Stephen Moore has withdrawn his bid to be appointed to the Federal Reserve Board — within hours of boasting that he expected to be easily confirmed by the Senate — President Donald Trump said Thursday in a Twitter post.

Moore's putative nomination for the central bank had faced intense criticism and scrutiny after Trump said he wanted him on the Federal Reserve board.

Moore, a 59-year-old visiting fellow at the Heritage Foundation think tank, drew fire for his economic views, a messy divorce, a $75,000 IRS income tax lien and past statements that belittled women.

"This is kind of a victory lap for the left because they took me down with a smear campaign," Moore said in an interview with Fox Business Network on Thursday.

Moore, in his withdrawal letter to Trump, likewise blamed "the unrelenting attacks on my character," which "have become untenable for me and my family and 3 more months of this would be too hard on us."

A senior administration official told CNBC that Moore decided to drop out on Wednesday night and informed Trump's top economics advisor Larry Kudlow of that decision in a phone call. Despite that, Moore told several media outlets on Thursday he planned to continue his effort to win approval by the Senate, and predicted he would be successful in that bid.

His withdrawal comes less than two weeks after businessman Herman Cain dropped out from Fed board contention because of opposition from a number of Republican senators. Moore likewise was facing pushback from multiple GOP senators this week.

Two other Fed picks by Trump, Nellie Liang and Marvin Goodfriend, likewise failed.

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While Moore told the president in his withdrawal letter that he will continue to support the presidents economic policies, the one place he will not be working is on the 2020 re-election campaign. A senior Trump campaign official told CNBC on Thursday that Moore will not be joining their operation.

Not long before Trump's announcement Thursday, Moore said in an interview with Bloomberg News that he disagrees with Trump's call for the central bank to sharply cut rates.

"I'm not so sure I agree with the White House that we should cut rates by an entire percentage point," said Moore, who has been critical of the Fed in the past. "I just don't see the case for that right now."

In that same interview, Moore said, "I think I'm going to win a big majority. ... Just because a senator today says they won't vote for me doesn't mean that three months from now they won't."

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Senate Minority Leader Chuck Schumer, D-NY, quickly called on Trump on Thursday to nominate "two serious candidates," pointedly suggesting that Cain and Moore were anything that that.

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Sen. Shelley Moore Capito, a Republican from West Virginia, told reporters that Moore's withdrawal "was a good move, and I look forward to the next nominee."

Asked if Moore's case provided the White House with a lesson on vetting nominees for government posts, Capito quipped, "Read people's articles that they write would be a good start."

A White House official told CNBC that Moore's nomination was still considered viable as of Wednesday.