Texas Sen. Cornyn says 'verdict of the voters' needs to be respected

AUSTIN, Texas (KTRK) -- While campaigning near Austin, Senator John Cornyn spoke overnight about what he says should happen after the election, no matter who wins.

"After all the votes are counted, we're going to accept the outcome of the election," Cornyn told his supporters. "That's what we do in America. We need to accept the verdict of the voters."

"What we're doing now is trying to encourage people sitting on the sidelines who think, 'My vote doesn't count,' or, 'There's something I'd rather do.' There is nothing more important for the future of our state and country," he continued.

This is considered a departure from President Donald Trump, who has repeatedly refused to say whether he would agree to a peaceful transfer of power if he loses.

"I have to see. Look ... I have to see," Trump told moderator Chris Wallace during a wide-ranging interview in July. "No, I'm not going to just say yes. I'm not going to say no, and I didn't last time either."

The president threatened legal action to prevent ballots from being counted after Election Day in Pennsylvania Monday.

Trump and his reelection campaign are signaling they will pursue an aggressive legal strategy to try to prevent Pennsylvania from counting mailed ballots that are received in the three days after the election.

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ABC News political director Rick Klein explains three likely scenarios for the Election Night.

The matter could find its way to the Supreme Court, especially if those ballots could tip the outcome in the battleground state.

The three-day extension was ordered by Pennsylvania's top court. The Supreme Court refused to block it, but several conservative justices have indicated they could revisit the issue after the election.

Pennsylvania Secretary of State Kathy Boockvar, a Democrat, already has told local elections officials to keep the late-arriving ballots separate, but also to count them. She acknowledged that a post-election court fight could change that.

Cornyn, a Republican, is facing challenger MJ Hegar for his U.S. Senate seat.

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The battle for the Senate is coming down the wire as Democrats hope to retain control of the House.

"I'm wearing my butt-kicking boots today because we're going all over this state," Hegar told supporters.

Hegar, a Democrat, is an Air Force veteran.

She campaigned in San Antonio Monday.

The Associated Press contributed to this report.

WATCH: Catching up with TX Senator John Cornyn
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GET TO KNOW THE CANDIDATE: In the interview above, ABC13's Tom Abrahams spoke with U.S. Senator John Cornyn, who's been serving since 2002. Here's where he thinks the election stands right now and why he believes social media is a gift and a curse.

WATCH: Quick questions with MJ Hegar, candidate for TX US senator
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GET TO KNOW THE CANDIDATE: In the interview above, ABC13's Jessica Willey spoke with MJ Hegar, a Democratic candidate for Texas U.S. Senate.

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