Frustrated voters: ‘Let us vote!’

>>> in florida, anger and frustration today in miami where voters lined up to cast absentee ballots after being cut off from the early voting deadline yesterday. what happened there and other potential election problems.

>> reporter: frustrated voters juice the miami-dade election office this afternoon. they had come after the county announced it would open its doors to provide an accept absentee ballots today. but so many voters showed up that election officials were overwhelmed. they shut their doors and then decided to reopen. the democratic party ensued to extend early voters after some voters were stuck on line for hours.

>> i have waited five hours now.

>> reporter: election officials are bracing for lots of potential voting problems on tuesday, especiallily in the key battleground states n ohio, experts say because of confusion over new absentee ballot rules, more than 200,000 voters may be forced to cast provisional ballots that won't be counted until ten days after election day .

>> there's a realistic chance that we will not know which candidate won the election in ohio.

>> reporter: citizen groups like tea to vote, a tea party offshoot who says it's trained more than a million poll watchers to look out for voter fraud . liberal activist groups are saying they're employing their own poll watchers.

>> we will be watching the poll watchers to make sure they are not acting as bullies.

>> reporter: meanwhile hurricane sandy's devastation has swamped election plans in the northeast. officials are faced with flooded buildings and power outages are besieged.

>> actually the timing of the storm was horrible for us respecting people's ability to get to the polls.

>> reporter: this weekend the state announced it will let voters displaced by sandy e-mail or fax their ballots in. and military trucks may be deployed as backup polling stations. all these issues could lead to an election storm that leads to confusion and even chaos at the polls on tuesday.