Republican votes will trend upward after 5PM Eastern in Ohio and Florida. Don't forget that Republicans actually work for a living, and many won't vote until after work.
Remember that the panhandle of Florida is Bush country and some of it is in a different time zone with later closing.
Remember the polls are raw data and to have been published this early indicates they were not analyzed for demographics, etc. If you want a hint later in the day, listen to Hannity. Unlike Rush he can't hide his feelings. If we're up you'll hear it in his voice. If he's still asking people to get out and vote at 5pm. we're in trouble.