Sen. Joni Ernst Joni Kay ErnstThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Liberal super PAC launches ads targeting vulnerable GOP senators over SCOTUS fight Romney backs pre-election Supreme Court vote, paving way for McConnell, Trump MORE (R-Iowa) said Tuesday afternoon that Stephen Moore Stephen MooreTrump economist touts nation's low poverty rate Sunday shows - Trump team defends coronavirus response Economist Moore calls on Pelosi, Schumer to 'get a deal done' amid stimulus stalemate MORE would likely be rejected by the Senate if President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE nominated him to the Federal Reserve Board.

Ernst told reporters she is "very unlikely" to support Moore if he is nominated to the post, adding that several other GOP senators shared her concerns about his potential appointment.

When asked if Moore would be confirmed by the Senate if the chamber were to vote on his nomination on Tuesday, Ernst said, “I don’t think so.”

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Ernst’s comments come a day after the Republican senator said she was “unenthused” by Moore’s potential nomination and criticized him for “ridiculous” past statements about women.

Sen. Lindsey Graham Lindsey Olin GrahamSenate 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-S.C.), a close Trump ally, also said Tuesday that Moore's nomination would be "very problematic" but did not rule out supporting him.

Moore has faced severe backlash for columns he wrote in the early 2000s criticizing the inclusion of women in sports.

"Here's the rule change I propose: No more women refs, no women announcers, no women beer venders, no women anything," Moore wrote in a National Review Online column in March 2002 that was unearthed last week by CNN's KFile.

Moore has since apologized for that column and said it was meant to be a spoof.

Trump and his top aides have defended Moore, saying they will continue to support him while reviewing his writings.

Moore has also been bashed for expressing concerns about women earning more than men, arguing that a female breadwinner would be "disruptive" to a household. He defended his comments in a Tuesday interview with CNBC, saying “the biggest problem I see in the economy over the last 25 years” is the decline in male earnings.

“I want everybody’s wages to rise, of course. People are talking about women’s earnings. They’ve risen,” Moore said on CNBC.

Ernst is among several Republican women to voice issues with Moore's comments and nomination.

Sen. Shelley Moore Capito Shelley Wellons Moore CapitoCongress must finish work on popular conservation bill before time runs out Second GOP senator to quarantine after exposure to coronavirus GOP senator to quarantine after coronavirus exposure MORE (R-W.Va.) said Tuesday that Moore's comments about women "are hard to look past," and Sen. Marsha Blackburn Marsha BlackburnTaylor Swift on National Voter Registration Day: 'We need everyone' Democrats smell blood with new DHS whistleblower complaint Hillicon Valley: Election officials prepare for new Russian interference battle | 'Markeyverse' of online fans helps take down a Kennedy | GOP senators unveil bill to update tech liability protections MORE (R-Tenn.) said she would grill Moore about his writings if he's nominated.

Sen. Susan Collins Susan Margaret CollinsClub for Growth to spend million in ads for Trump Supreme Court nominee Maryland's GOP governor says Republicans shouldn't rush SCOTUS vote before election The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November MORE (R-Maine) said that while she had "concerns" about Moore's commentary, the debate on his record is "premature" since he has not been officially nominated yet.

– Jordain Carney and Al Weaver contributed