Republican presidential front-runner Donald TrumpDonald John TrumpSenate GOP budget ignores Trump, cuts defense Trump says he'll nominate Stephen Moore to Fed White House: ISIS territory in Syria has been 100 percent eliminated MORE is sending a warning to GOP leaders about his dominance in the polls: “You’ve got to get used to it.” 

During an interview with Fox News’s Chris Wallace, the billionaire said Republicans are “kidding themselves” if they think he won’t secure the GOP nomination. 

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“I say, folks, you know, I’m sorry I did this to you, but you’ve got to get used to it,” Trump said. “It’s one of those little problems in life.” 

“I’m going to win. ... You know, I’m not one of these other guys that goes down. I don’t go down. I go up.”  

Trump’s interview with Wallace is set to air Sunday at 6 p.m.