What would happen a polling station caught on fire while it was open or after it closed and the ballots (or voting machines) were dectroyed befor the votes could be counted? Would everybody who voted there get to vote again?
Uh… why do you ask?
A friend from Texas says that the normal procedure is for the court house to burn down after the ballots have been counted and reported.
AFAIK, it’s just tough luck. Nobody gets to vote twice under any circumstances.
Except in Chicago.
Why, my uncle was dead for years before he quit voting. 
Good grief, Sam. That old canard.
Nobody in Chicago ever voted twice. Three times, six times, eight times, yes. But twice? Not even worth getting out of bed for.
You might also simply ask what would happen if a voting machine overheated, or a power surge caused it to blink out. This can happen, and did happen in trials of machines in Florida. I guess we’ll find out on Tuesday what they do next.
Here in Minneapolis, we use paper ballots where you mark a little oval, similar to standardized school tests. Then the ballot is fed thru an optical scanner that counts the votes.
We actually had an incident one election where the power went out in the neighborhood where a polling place was located.
What happened? Nothing much.
They set out some candles around the polling place, and voters continued to fill out their ballots by candlelight. Then they put them in a box in front of the scanner, since it wasn’t working while the power was off.
When the power came back on, the workers took all the ballots out of the scanner, and ran them thru again, along with all the added ballots from the box in front. It only took them an hour or so, and they were back in business. No special problems at all. One of the real advantages of actual paper ballots, in my opinion!