Story highlights If Trump loses, he says he'll take a "very nice long vacation"

(CNN) Donald Trump offered a fatalistic assessment of his personal and political future on Thursday, saying he will not abandon the controversial style that fueled his ascent despite lagging poll numbers and a string of damaging controversies.

And if that means losing to Hillary Clinton in November, Trump told CNBC : "I'm going to have a very, very nice long vacation."

Doubling down on his assertion Wednesday that President Barack Obama is "the founder of ISIS" and Clinton its "co-founder," Trump rejected any suggestion he might tamp down his rhetoric as Election Day closes in.

"Look, all I do is tell the truth," he said. "I'm a truth-teller. All I do is tell the truth, and if at the end of 90 days I've fallen short because I'm somewhat [not] 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. It's not what I'm looking to do. I think we're going to have a victory. But we'll see."

Presented with a series of bad swing state poll numbers and asked how he would "close that gap," Trump cut off any talk of changing course.

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