Presidential candidate Donald Trump is threatening to go to war with Republican rival Ted Cruz. Trump was asked about Cruz's rise on CNBC.
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"Well he's been very nice and very supportive of everything I've said, more than anybody else," Trump said of Cruz.
"And we'll see what happens. If he catches on, then I guess we'll have to go to war. But so far we haven't. We've been very supportive. We have a lot of the same ideas."