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Donald Trump continued his war of words with Sen. Ted Cruz (R-TX) this morning on Fox and Friends, responding to a negative tweet from Cruz right before last night's Democratic debate started.

Trump argued that Ronald Reagan was a "strong liberal" in his younger years before becoming "quite conservative" and being a great president. 

"Everybody's views change," Trump said. 

He said that Cruz, for example, was "weak" on immigration before "all of a sudden" proposing that the U.S. build a wall along the Mexican border. 

"Where did that come from? Everyone thought my wall idea wasn't so good and now all of a sudden they're all saying, 'Let's build a wall.' I know how to get it done and I know how to make Mexico pay for it," said Trump, adding that Cruz is "very unpopular" in Washington and that would make it very difficult for him to "get things done." 

"I want to make America great again. ... You have to get deals done. We can't always keep invoking executive orders," said Trump, arguing that "everybody hates Ted" in D.C.

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