President Barack Obama was all over New Jersey last week after Hurricane Sandy, and its Republican governor and Mitt Romney keynote speaker Chris Christie was effusive in his praise. Obama returned the favor:

Christie: I speak to President Obama every day; he put Bruce Springsteen on the phone. #sandyonfox
— @MyFoxNY via Facebook

Romney re-returned the favor.

New Jersey Gov. Chris Christie, who was effusive in his praise of President Barack Obama when the two leaders toured damage from Hurricane Sandy last week, turned down a request by Mitt Romney to appear with him at a rally on Sunday night in Pennsylvania, The Huffington Post has learned [...]

The Romney rally was held at a farm in Morrisville, Pa., not more than 20 minutes from Trenton, the New Jersey capital. The physical proximity of the event to New Jersey only added to questions in the Romney campaign about why Christie chose not to come.

"You can't tell me he couldn't have gone over there for a night rally," a Romney campaign source told HuffPost.