Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE said Friday that if he loses the election, Republicans won’t be able to win in the future because Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE will legalize enough undocumented immigrants to vote down GOP candidates.

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"I think this will be the last election if I don't win,” Trump told the Christian Broadcasting Network’s “Brody File.”

“I think this will be the last election that the Republicans have a chance of winning because you're going to have people flowing across the border, you're going to have illegal immigrants coming in and they're going to be legalized and they're going to be able to vote, and once that all happens, you can forget it."

Michele Bachmann Michele Marie BachmannEvangelicals shouldn't be defending Trump in tiff over editorial Mellman: The 'lane theory' is the wrong lane to be in White House backs Stephen Miller amid white nationalist allegations MORE, a former House Republican from Minnesota who’s advising Trump, echoed a similar refrain in comments to the same outlet last week and in her address to the Values Voter Summit Friday.

“If you look at the numbers of people who vote and who live in the country and who Barack Obama Barack Hussein ObamaTwitter investigating automated image previews over apparent algorithmic bias Donald Trump delivers promise for less interventions in foreign policy Rush Limbaugh encourages Senate to skip hearings for Trump's SCOTUS nominee MORE and Hillary Clinton want to bring in to the country, this is the last election when we even have a chance to vote for somebody who will stand up for godly moral principles. This is it,” Bachmann told the radio program.

Trump also said that a Clinton victory will have dire consequences for certain conservative ideals.

“If we don't win this election, you'll never see another Republican and you'll have a whole different church structure,” he said. “You'll have a whole different Supreme Court structure."