Sen. Thom Tillis Thomas (Thom) Roland TillisThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting OVERNIGHT ENERGY: EPA head questions connection of climate change to natural disasters | Pebble Mine executives eye future expansion in recorded conversations | EPA questions science linking widely used pesticide to brain damage in children Liberal super PAC launches ads targeting vulnerable GOP senators over SCOTUS fight MORE (R-N.C.) said Thursday that if Roy Moore is elected to the Senate next week, there should be an ethics investigation into the sexual assault and misconduct allegations against him.

Tillis said on Buzzfeed’s “AM to DM” Twitter morning show that he thinks an investigation should take place before the chamber moves to expel Moore or take other action.

"We need to examine the facts and let those facts lead us where they may,” he said.

Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Senate GOP aims to confirm Trump court pick by Oct. 29: report Trump argues full Supreme Court needed to settle potential election disputes MORE (R-Ky.) has also called for an immediate ethics investigation if Moore wins the Alabama special election, while National Republican Senate Committee Chairman Cory Gardner Cory Scott GardnerOvernight Health Care: US coronavirus deaths hit 200,000 | Ginsburg's death puts future of ObamaCare at risk | Federal panel delays vote on initial COVID-19 vaccine distribution 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 (Colo.) has called for his expulsion from the Senate.

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Moore faces allegations from nearly 10 women who say he pursued them as teenagers when he was in his 20s and 30s, including multiple women who say he assaulted them.

Tillis originally called for Moore to withdraw from the race and said Thursday that he still stands by that position, but added that until Moore is under the jurisdiction of the Senate, the decision is in the hands of Alabama voters.

"There’s Supreme Court precedent to say that we really don’t have the authority to deny him being seated,” he said. “But we do have jurisdiction over members, and we use an ethics investigation and then we look at what remedies come from that.”

Tillis also criticized colleagues who have stood by Moore on the basis that he will help advance the GOP agenda.

“Anyone that would say, ‘Yeah, he’s got problems but he’s a Republican vote’ really ought to rethink whether or not they should be in this institution,” he said.

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 threw his support behind Moore this week, saying that Alabama can’t have a “liberal person” like Democratic challenger Doug Jones in the Senate.

Following Trump’s endorsement, the Republican National Committee (RNC) reinstated its support of Moore, giving $170,000 to the Alabama Republican Party to help the campaign, after originally distancing itself from the candidate.

Gardner, the chairman of the Senate GOP's campaign arm, broke with Trump and the RNC on Thursday, saying "we will never" endorse Moore.

Also Thursday, House Speaker Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE (R-Wis.) repeated his calls for Moore to drop out of the campaign, regardless of polls showing a tight race with Jones.

“I think he should have dropped out,” Ryan told reporters at his weekly news conference. “Just because the polling has changed doesn’t change my opinion on that, so I stand by what I said before.”