That's because they didn't count the under votes, when every vote was eventually totted up Gore got most.the Supreme Court's justices have taken an oath to defend the constitution.
Frauds in postal votes make up less than 0.1%. The Justices will have no problem with the count.
After Al Gore asked for votes in Florida to be recounted 3 times, the Supreme Court decided in favour of Bush. The problem wasn't that the justices voted for their party, it's because Gore did not win clearly any of the recount.
Sadly by then the Justices had already decided Bush had enough to get in, if we see the same thing with Trump he'll stay right where he is now for another four years.
Seems he's narrowed the gap again by a few points, amazing what a quick dose of the pox can do.