“I think that he is not somebody who, even within the Republican Party, can be considered as equipped to deal with the problems of this office," President Obama said in an interview with WMUR in New Hampshire that aired Monday evening. "But look, we live in a democracy."

Obama warned Republican voters that a Trump nomination would put either Hillary Clinton or Bernie Sanders in the Oval Office.

"If, in fact, the Republicans nominate Mr. Trump, then it’s going to be an interesting fall season," he said. "I’m confident that ultimately the Democrat in that circumstance will win.”

Obama has emerged as a vocal critic of Trump during the billionaire businessman's rise to the top of the Republican field.

The president, for example, went after Trump during his speech at the White House Correspondents’ Association dinner Saturday night.

“Is this dinner too tacky for the Donald? What could he possibly be doing instead? Is he at home eating a Trump steak? Tweeting out insults to Angela Merkel? What’s he doing?" Obama asked.

But Obama’s words have not done anything to slow Trump’s march to the nomination. He’s the only candidate in the GOP field who can win the 1,237 delegates needed to clinch the party's nomination before the Republican National Convention in Cleveland.

Trump, in turn, has ramped up his criticism of Obama as he looks ahead to the general election.

The real estate mogul is looking to silence any questions about whether he will be the GOP’s nominee with a victory in the Indiana primary on Tuesday.

Several polls show him leading his main GOP rival, Sen. Ted Cruz (Texas), in the Hoosier State.