Republican presidential candidate John Kasich, failing to gain substantial traction in his bid for the GOP nomination, suggested in a new interview that he's set to withdraw from the race if he fails to win in New Hampshire.

Kasich told the Wall Street Journal in an interview published Friday evening that he's betting his campaign infrastructure will secure him a victory in the early primary state. But Kasich said if he loses big there, he'll accept defeat.

"If I get destroyed in New Hampshire, then that's the end of the game," he said. "But I don't think that's going to happen, because I have too good of ground game up there. That's how you win elections, with the ground game. I've got the best ground game in the state."

Kasich is currently averaging 7 percent support in New Hampshire, according to RealClearPolitics. That puts him in fifth place, trailing front-runner Donald Trump by more than 20 points.

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