(CNN) - New Jersey Republican Gov. Chris Christie canceled an appearance in Philadelphia Thursday because he was ill, his office said.
In Philadelphia, Christie would have shared geographical territory with President Barack Obama, who is scheduled to speak at an event Thursday night for the Democratic Senatorial Campaign Committee.
The governor's staff said Christie was "just not feeling well at all."
Christie had been scheduled to deliver the keynote address to the Committee of Seventy, a political watchdog group, at their annual fundraising breakfast. The event has been postponed.
After sailing to re-election last week in a very blue state, Christie is widely considered a major contender for the 2016 Republican presidential nomination. A poll Wednesday put him in a statistical dead heat with a potential Democratic opponent, former Secretary of State and first lady Hillary Clinton.