The countdown is on. Tomorrow night President Barack Obama and former Massachusetts Governor Mitt Romney square off in the first general election debate.

Governor's Office/Tim Larsen

Governor Christie says whatever happens Wednesday, it will be a game-changer for the GOP presidential hopeful.

"Its a big night, if it wasn't, 60 million people wouldn't be watching," Christie said during a press conference in Morris County.

Christie says despite a rough few weeks, the Romney camp is ready to turn things around Wednesday.

"I think the primary proves he's ready for a debate. He defeated Newt Gingrich and Rick Perry and wiped them out so I think he will do well, I have confidence in the guy."

Christie says its also a chance for the public to see the two side by side for the first time.

"How do they answer questions, how do they address issues, how do they deal with each other."

The governor also says history proves that debates can swing the outcome.

"Look at John F. Kennedy and Ronald Reagan, they were losing until they had a debate and that shows that the first debate in a series of debates is very important in determining the result of an election."

Later this week, Christie will head west to lend his support to a host of Republican candidates, including presidential nominee Mitt Romney.

Christie begins his whirlwind tour on Thursday in Washington, where he will appear at three events for gubernatorial candidate Rob McKenna. On Friday he's scheduled to appear at fundraising events in Montana for gubernatorial candidate Rick Hill and U.S. Senate candidate Denny Rehberg.

The campaign trip concludes with two stops on Saturday. Christie will appear in North Dakota to stump for Gov. Jack Dalrymple, U.S. Senate candidate Rick Berg and Congressional candidate Kevin Cramer. He'll then head to Michigan to attend fundraising events for Romney and the state Republican Party.


(The Associated Press contributed to this report)