Washington (CNN) Former Republican Sen. Jeff Flake would prefer a Democrat win the 2020 election than have President Donald Trump serve a second term, saying that "four years is difficult enough to unravel some of the damage" done internationally by the administration.

Flake, a longtime Trump critic who argued Thursday that the Republican Party should not support Trump in 2020, was asked if it is better for a Democrat to win the election if Trump is the Republican nominee.

"Yes ... and this notion, this narrative that's been built up, that Donald Trump is the only one that can cobble together the Electoral College and win is just a fallacy," Flake replied at an Intelligence Squared debate in New York City. The organization bills itself as a "non-partisan, non-profit" group that hosts debates aimed at promoting various points of view.

"I think that four years is difficult enough to unravel some of the damage that has been done internationally to our role, to our leadership position. We cannot, should not go another four years," the Arizona Republican said.

Flake also turned to attacking the President on policy during the debate, criticizing his positions on immigration and free trade, as well as Trump's treatment of the media.

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