The Obama campaign tonight aired its first national TV ad of the election cycle — a 30-second spot on the MTV Network that features actress Sarah Jessica Parker plugging President Obama’s record and soliciting donations for a campaign sweepstakes. “OK, the guy who ended the war in Iraq; the guy who says you should be able to marry anyone you want; the guy who created 4 million new jobs. That guy — President Obama — and his wife Michelle are coming to my house for dinner on June 14th,” Parker says to camera. “And I want you to be there...