SPRINGFIELD, ILL. — A trip by former Vice President Joe Biden to Springfield, Illinois, has been called off because of illness.

Biden had been scheduled to speak Thursday at the Illinois Democratic County Chairs’ Association brunch at a Springfield hotel, but the group’s leader says Biden is under doctor’s orders not to travel.

The group had sold all 2,500 tickets for hotel’s main ballroom and made plans to accommodate 700 more people in a second room.