Once it became clear that the businessman was the frontrunner, Christie endorsed Trump (viaPolitico).
Although, to be fair, there were many times Christie said less-than-complimentary things about the eventual president.
President of the United States is not a place for an entertainer."

In 2019, Christie would call Trump a “friend” (viaCNBC).
We deserve much better than to be misled by those trying to acquire or hold on to power."
“Chris we know you are posturing to run for Prez.

Do the party a favor and DON’T.
You’re a good guy, just don’t have the star power to pull it off.
Just line up with the good cause.

Support Trump if he runs,” oneTwitteruser posted.
But someone else supported the would-be candidate by tweeting, “Thank you, Mr. Christie!
Finally, a Republican that speaks with moral clarity.
just keep up the good work for the good of America and the good of your party.”
Finally, someone tweeted, “Chris Christie will do what is best for Chris Christie just like Trump.
He fails all the leadership and principle tests for me!”