Now, two new cases may address the rules in the biggest battleground state on the eve of the election, with implications for thousands of ballots that have already been mailed in or dropped off.The latest fights — and there may be more to come — present two issues.

The Supreme Court cleared the way for Pennsylvania voters to submit provisional ballots as a remedy for improperly cast absentee ballots in the presidential election.

It is hard to estimate how many ballots will be affected by the decision or whether it will ultimately impact the outcome of the presidential election.