Hillary Clinton falling ill Sunday morning at a memorial service on the 15th anniversary of the Sept. 11 attacks will catapult questions about her health from the ranks of conservative conspiracy theory to perhaps the central debate in the presidential race over the coming days.

“Secretary Clinton attended the September 11th Commemoration Ceremony for just an hour and thirty minutes this morning to pay her respects and greet some of the families of the fallen,” spokesman Nick Merrill said. “During the ceremony, she felt overheated, so departed to go to her daughter’s apartment and is feeling much better.” READ MORE