Obama, Romney tangle on health care, jobs

President Barack Obama speaks at a campaign event at the Century Village in West Palm Beach, Fla., Thursday, July 19, 2012. (AP Photo/Susan Walsh)

MANALAPAN, Fla. (AP) — President Barack Obama is warning Florida retirees that Republican challenger Mitt Romney would undercut the new health care law and alter Medicare, a play for voters in one of the nation’s top swing states.

Obama on Friday was cutting short a two-day trip to Florida after a stop in Fort Myers. A second event, scheduled for suburban Orlando, was canceled because of the developing story in Colorado, where a gunman opened fire at a suburban Denver movie theater, killing 12 people. Obama was expected to comment on the shooting at his campaign rally in Fort Myers, then return to the White House earlier than originally planned.