NEW : Reporting of results paused in Virginia . Presidential election could be delayed if battleground election is particularly close . Polls begin counting at 7 pm , ET . If Obama comes up trailing when those early votes are posted soon after polls close , it could indicate the president might have trouble carrying Florida and its crucial electoral votes , according to Hamby . This could be an early indicator , CNN 's Larry King says .
NEW : Reporting of results paused in Virginia . Presidential election could be delayed if battleground election is particularly close . Polls begin counting at 7 pm , ET . This could be an early indicator , CNN 's Larry King says .