Trump: Romney ‘would have dropped to his knees’ for my endorsement

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LOUISVILLE, KY - MARCH, 1: Republican presidential candidate Donald Trump speaks at the Kentucky International Convention Center March 1, 2016 in Louisville, Kentucky. Trump is campaigning nationwide on Super Tuesday, the single largest primary voting day. (Photo by Aaron P. Bernstein/Getty Images)

(CNN) — Donald Trump struck back at 2012 presidential hopeful Mitt Romney Thursday, blasting the former Massachusetts governor for “begging” for his endorsement four years ago only to sharply criticize him now.

“I don’t know what happened to him,” Trump said during a rally in Portland, Maine. “You can see how loyal he is. He was begging for my endorsement. I could have said Mitt ‘drop to your knees.’ He would have dropped to his knees.”

Just hours before Trump, Romney gave a speech blasting Trump as bad on foreign policy and lacking the temperament to be president.

“Think of Donald Trump’s personal qualities, the bullying, the greed, the showing off, the misogyny, the absurd third grade theatrics,” he said. “We have long referred to him as ‘The Donald.’ He is the only person in America to whom we have added an article before his name. It wasn’t because he had attributes we admired.”

Trump went on an extended rant about Romney, while also making time to jab Democratic front-runner Hillary Clinton and Florida Sen. Marco Rubio, whom the brash billionaire will face off against during a debate Thursday night.

“Mitt is indeed a choke artist,” Trump said. “He choked like I’ve never seen anyone choke. Other than Rubio.”