Republican presidential front-runner Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE suggests in a new interview that it is extremely unlikely he would use nukes should he make it into the Oval Office.

"I wouldn't be nuking anybody," Trump said in a GQ interview published online Monday when asked if he would be scared to nuke countries if he considered it justified.

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Under any circumstances? "I will have a military that's so strong and powerful, and so respected, we're not gonna have to nuke anybody," Trump responded.

The real estate tycoon pushed back on the suggestion that the U.S. could get rid of its nuclear stockpile, suggesting it should keep them because other countries have their own.

"It is highly, highly, highly, highly unlikely that I would ever be using them," Trump said.

Several GOP candidates have publicly questioned Trump's temperament for the White House, with rival former Florida Gov. Jeb Bush remarking last month on CNN that he had "grave doubts" about the celebrity businessman having his hand on the nation's nuclear codes.

Republicans have pointed to Trump's combativeness and controversial rhetoric on a range of domestic and international issues to argue he's unfit to be commander in chief.

Trump, who has long described himself as a "counter puncher," suggested in his GQ interview that he would be less bellicose as president.

"I would imagine I would be quite a bit different. I would feel differently about things as a president. Right now, I'm fighting a lot of people. As a president I would be more measured," Trump said.

"I wouldn't change much, but I think I would probably tone down the rhetoric, perhaps. And perhaps not. Depends on who it was that I was speaking about. We have some bad dudes out there," he added.