A head of the Council of Economic Advisers under former President George W. Bush has called on the Senate to reject 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 nomination of author and Heritage Foundation economist Stephen Moore to the Federal Reserve.

Greg Mankiw, an economics professor at Harvard who served as an adviser to both Bush and Sen. Mitt Romney Willard (Mitt) Mitt RomneySenate GOP aims to confirm Trump court pick by Oct. 29: report The Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Senate GOP sees early Supreme Court vote as political booster shot MORE (R-Utah) through his 2012 presidential run, wrote on his blog Friday that senators should "do their job" and ensure Moore is not named as a Fed governor.

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"Steve is a perfectly amiable guy, but he does not have the intellectual gravitas for this important job," Mankiw wrote. "It is time for Senators to do their job. Mr. Moore should not be confirmed."

Mankiw pointed to Moore's latest book, "Trumponomics," and his support for Trump's economic policies as a reason for his opposition. Mankiw previously ripped the book's co-authors for "tribalism" in a review titled "Snake-Oil Economics." He declined to comment further on Saturday about his opposition to Moore's nomination.

"Rather than suggesting coherent policies, Moore and [Art] Laffer seem to hope that a much more rapidly growing economy will provide the resources to address all these problems, and they seem to believe that this growth will follow ineluctably from the lower taxes and deregulation that lie at the heart of Trump’s agenda," Mankiw wrote in his review of their book earlier this year.

"It would be wonderful if that were possible. Maybe rah-rah partisans really believe it is. But more likely, it is just wishful thinking," he added at the time.

Trump announced Moore's nomination to the Federal Reserve on Friday in a tweet touting the CNN and Wall Street Journal contributor as a "very respected Economist" and an "outstanding choice" for the bank.

It is my pleasure to announce that @StephenMoore, a very respected Economist, will be nominated to serve on the Fed Board. I have known Steve for a long time – and have no doubt he will be an outstanding choice! — Donald J. Trump (@realDonaldTrump) March 22, 2019

"Thankyou @realDonaldTrump for the opportunity to serve & for your zealous commitment to freeing the American economic engine from government overreach & oppressive taxation!" Moore responded in his own tweet.