"I had nothing to do with it," the Republican governor said of the controversial closures.
Holding the event on the island will put the issue of immigration front and center.
Gov. Jerry Brown (D) has raised more than $13 million.
The post gives Christie a platform to begin building support for a probable 2016 run.
The Texas Democrat has signed with a division of Penguin Random House.
The secret, observers and staffers say, lies in Christie’s personal appeal.
Jason Carter's decision gives Democrats two top-tier candidates.
According to exit polls, 45 percent of Virginia voters blamed President Obama for the shutdown.
Obama originally only called Democrats who won Tuesday, but he spoke to Christie Wednesday afternoon
He called Terry McAuliffe, Bill de Blasio and Martin Walsh.