[gruez]

>When we had paper ballots, we knew that night. (For America)

You forgot about 2000. Also, the main reason for the delays are mail-in ballots, which could be delayed for days/weeks, depending on how lenient the deadlines are.

[chrisco255]

2000 was punch cards and it came down to a razor thin 500 votes in a single swing state.

By law the mail-in ballots have to be in by election day.