The American Spectator

This morning Communications Director Katie Levinson released this: "The symptoms worsened as the day wore on and shortly after taking off from Chesterfield, Missouri, for New York the mayor became uncomfortable enough that our plane returned to the airport in Chesterfield.To be on the safe side, the mayor consulted with his personal physician in New York and made the decision to go to the Barnes Jewish Hospital in St. Louis for routine tests."

Until then Giuliani was having a good, solid day. He picked up an endorsement in NH by the Foster's Daily Democrat and had a full day of campaigning with Kit Bond and accompanying favorable coverage in MO. He had no prior events scheduled today and no word yet if he'll be in NH as planned on Friday.

UPDATE: Levinson: "After precautionary tests the doctors found nothing of concern at this time and Rudy will be going back to New York later today. He is in high spirits and is grateful to the doctors and nurses who checked him out."