Article Photos: 5 things to watch for in the campaign homestretch

President Barack Obama reacts after realizing he dialed the wrong number while making calls from a local campaign field office during a unscheduled visit, Sunday, Oct. 28, 2012 in Orlando, Fla. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama reacts after realizing he dialed the wrong number while making calls from a local campaign field office during a unscheduled visit, Sunday, Oct. 28, 2012 in Orlando, Fla. (AP Photo/Pablo Martinez Monsivais)