WASHINGTON – Alabama Republican Sen. Richard Shelby said Sunday he didn’t vote for fellow Republican Roy Moore because “the state of Alabama deserves better.”

Shelby said he already cast his vote in the high-stakes special Senate election and wrote-in another unidentified Republican, rather than choose his party’s nominee, who is accused of groping teenage girls.

“I’d rather see the Republican win, but I’d rather see a Republican write-in. I couldn’t vote for Roy Moore. I didn’t vote for Roy Moore,” Shelby told CNN’s “State of the Union.”.

Moore faces Democrat Doug Jones Tuesday in the election to replace Sen. Jeff Sessions. Multiple women said Moore sought sexual relationships with them when they were teens, including Leigh Corfman who was 14 at the time when she said Moore fondled her.

“(W)e call it a tipping point,” Shelby said. “I think, so many accusations, so many cuts, so many drip, drip, drip — when it got to the 14-year-old’s story, that was enough for me. I said I can’t vote for Roy Moore.”

Moore has denied all allegations of molestation and sexual misconduct. He’s earned President Trump’s endorsement and has the support of the Republican National Committee.

But Rep. Barbara Comstock, a Virginia Republican leading sexual harassment reforms in Congress, said she’s bothered by Trump’s endorsement.

“It doesn’t represent me,” Comstock told “Fox News Sunday” of Trump’s campaigning. “I don’t think it represents most of the Republican women, as well, as my colleagues like Senator Tim Scott … and Cory Gardner have made clear.”

Trump held a rally near Alabama this weekend and recorded a robocall on Moore’s behalf. “So get out and vote for Roy Moore,” Trump urged supporters a weekend rally.

In the robocall starting Sunday Trump says: “Roy Moore is the guy we need to pass our ‘Make America Great Again’ agenda.”

At Trump digs in his support, three lawmakers resigned from Congress this week in the face of sexual harassment allegations and a growing zero tolerance movement at the Capitol.

Should Moore win, Republican senators say he will be subject to an Ethics Committee investigation and will face testimony from the accusers under oath.

“There will immediately be an ethics investigation,” Sen. Tim Scott (R-S.C.) said Sunday on NBC’s “Meet the Press.”

But the Moore campaign remained confident that he will weather any accusations because he has “been telling the truth.”

“Judge Moore is going to go to Washington,” Dean Young, Moore’s chief political strategist told ABC’s “This Week.”

“Judge Moore is going to win. And I highly doubt there is going to be a Senate investigation. But if there is, Judge Moore is going to be found telling the truth, just like he always has. And he will win.”