Associated Press
President Obama laughs as he's welcomed by a bipartisan duo - New Jersey Gov. Chris Christie (center), a Republican, and Newark Mayor Cory Booker, a Democrat - upon his arrival aboard Air Force One in Newark, N.J.

Associated Press President Obama laughs as he's welcomed by a bipartisan duo - New Jersey Gov. Chris Christie (center), a Republican, and Newark Mayor Cory Booker, a Democrat - upon his arrival aboard Air Force One in Newark, N.J.