U.S. Sen. Bob Corker, R-Tennessee, came out quickly following Wednesday's night presidential debate with a statement saying it is "imperative" that Donald Trump says he'll accept the results of the election.

"It is imperative that Donald Trump clearly state that he will accept the results of the election when complete," Corker tweeted on his campaign Twitter account late Wednesday night.

A spokeswoman from Corker's Senate Office confirmed that the the tweet came from the Tennessee senator.

Corker's comment came after Trump, the Republican nominee, did not say, when asked by debate moderator Chris Wallace Wednesday night whether he would accept the results of the presidential election,

"I'll keep you in suspense," Trump said.

With regularity during the final weeks of the campaign, Trump has called the election "rigged," arguing that the media has worked to help Democrat Hillary Clinton and that voter fraud is rampant in urban cities controlled by Democrats. He's not offered evidence to back up the latter claim.

Corker, a two-term senator and former mayor of Chattanooga, was considered by Trump to be his vice president running mate, but Corker pulled his name from contention before Trump picked Indiana Gov. Mike Pence.

This story originally appeared on The Tennessean’s website.