"You're going to hear about three aspects of my career — presidential candidate, governor, U.S. attorney," Christie told PIX11 News about his speech.
His speech will enhance Trump's chances of winning "by talking about his commitment to change things in this country and talking about failures of Hillary Clinton," Christie said.
Addressing the divisiveness that still exists with the GOP, Christie said: "With Donald's speech Thursday night as the nominee it is incumbent upon him to do some of that healing and you'll see it because of Hillary Clinton's performance next week."
Asked for his reaction to the firestorm Melania Trump's speech created when it was found that at least two phrases were almost the same words that Michelle Obama said at the Democratic National Convention in 2008, Christie denied there was any plagiarism.
He said "93 percent of the speech was unlike anything Michelle Obama said and some of the things she said eight years ago aren't groundbreaking things for wives to say about their husbands and families." And he concluded, "I think this is much ado about nothing. You guys will be into another story tonight."
Christie is chairman of Trump's transition team, who will seek out key appointees for a cabinet should he win. Is he interested in a role?
"If he offers me something I'll think if it makes sense. I'll consider it and if I don't, I'll finish my term and get in the private sector like you Marvin."
Asked if he had a wish list, he said no, adding, "I had one. I wanted to run for president. It didn't work out."