Donald Trump called Mitt Romney “ungrateful” for his support during the 2012 Republican primary during an interview with NBC News’ Chuck Todd on Sunday.
"I believe I won him, or helped him win five states that he was going to lose in the primaries," Trump said, addressing “every single robocall” he made for the former Republican presidential nominee and Massachusetts governor.
Romney has been an outspoken critic of Trump. His name is being floated as a possible third-party candidate.
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Pressed on if he believed Romney was "ungrateful" for his support, Trump replied, "He was. He was ungrateful. Which is okay. A lot of people are ungrateful. But he was ungrateful. They did not respond accordingly."