Here are 5 times Chris Christie destroyed 'ridiculous' Donald Trump -- before he endorsed him
NJ Gov. Chris Christie, businessman Donald Trump (Gage Skidmore/Flickr, AFP)

New Jersey Gov. Chris Christie endorsed GOP presidential front-runner Donald Trump Friday afternoon, disregarding months of attacks on the blustery New York billionaire by -- Chris Christie.

Christie's last notable accomplishment before dropping out of the Republican primaries was savaging FL. Sen. Marco Rubio, but he jumped back into the fray on Friday with his surprise endorsement of Trump -- making him one of the few Republican office holders to do so.

Things were not always so cordial between the two when they were fighting for votes from Republicans who like their candidates brash and outspoken.

In December of 2015, Christie ripped into Trump as a television reality star whose shtick was firing people for the enjoyment of the audience.

"There are folks in this race who don't care about what the law says because they're used to being able to just fire people indiscriminately on television. So, they don't have to worry about what laws say or not say," Christie said in December.

Christie also slammed Trump over his proposed ban on Muslims entering the country, calling it "ridiculous."

"You do not need to be banning Muslims from the country. In my view, that's a ridiculous position and one that won’t even be productive," the governor said.

On the matter of Muslims, Christie also disputed Trump's claim that Muslims in New Jersey were seen celebrating on 9/11/2001 as the Twin Towers in Manhattan were collapsing.

"If it had happened I think I would have remembered. If you'd like me to say it another way, it didn't happen," he stated. "And in fact is that you know you people could say anything like, but the facts are facts and that did not happen in New Jersey that day and hasn't happened since."

The New Jersey governor called out Trump in late January when he refused to attend a GOP debate because he was in the midst of a "hissy fit" with Fox News.

"I mean that was really quite a performance, wasn't it? 'I'm taking my marbles and going home,'" Christie smirked. "Well, guess what? When you're president, you don't get to do that. And if you do, it's going to cost American lives and American fortune and American reputation."

In September of 2015, Christie mocked Trump's terse and bombastic way of providing soundbites to the media by doing an impression of the real estate developer.

Explaining that the lesser candidates couldn't get any coverage from the major networks, Christie imitated Trump while speaking with Fox News host Megyn Kelly.

“You want ratings? Christie is ratings,” Christie blurted. “Ratings, Megyn. Total ratings! Big, very big!” before adding, “How’s that? Is that good?”

Christie also took a shot at Trump in December of 2015 after he mocked New York Times reporter Serge Kovaleski, for his muscular disability.

"He shouldn't be making fun of people's disabilities. It's just not worthy of someone running for president of the United States,” Christie stated, before adding that he wouldn't put up with Trump yelling at him.

"If Donald starts yelling and screaming at me in the middle of a speech, you could be sure that I'll say sit down and shut up," Christie stated at the time.

Christie's presidential endorsement no doubt precludes that happening in the very near future.