Trump Refuses to Soften Rhetoric: "It's Either Going to Work or I'm Going to Have a Nice Vacation'

In an interview with CNBC's 'Squawk Box,' Republican presidential contender says if he loses because of his frankness, 'it's OK. I go back to a very good way of life.'

U.S. Republican presidential candidate Donald Trump rejected on Thursday suggestions he should tone down his rhetoric, telling CNBC's "Squawk Box" show he would be happy to take a vacation if his frankness wound up costing him November's election.

"I'm a truth teller. All I do is tell the truth," Trump told the morning program. "And if at the end of 90 days, I've fallen short because I'm somewhat politically correct even though I'm supposed to be the smart one and even though I'm supposed to have a lot of good ideas, it's OK. I go back to a very good way of life."

Unfavorable poll numbers in the past week have worried Republicans, with a fifth of them reported to be yearning for Trump to drop out of the race.

Trump also accused President Barack Obama of having "absolutely" founded ISIS, repeating a remark from Wednesday. He also stood by his controversial Second Amendment remarks, denounced by Democrats as a call to violence against Hillary Clinton.

Clinton called Trump out on the remarks on Wednesday, saying Trump's "casual inciting of violence" shows he does not have the temperament to be president.

Despite the tumult over his latest statements, Trump seemed confident he would defeat Clinton.  

"I think we're going to have victory, but we'll see," Trump said. "At the end it's either going to work or I'm going to have a very, very nice long vacation."