Gov. Christie: Romney believes 'American pie' can be bigger

Christie endorsed the former Massachusetts governor Tuesday, underscoring his status as frontrunner for the GOP nomination.

"The American people are going to decide that they want to believe in American optimism over American division. That they want to believe in somebody who believes America's future can be greater, not someone who is trying to divide an ever shrinking pie among the American people," he said.

For more on Christie's endorsement of Romney, click here.