https://www.factcheck.org/2008/01/the-florida-recount-of-2000/
On the other hand, the study also found that Gore probably would have won, by a range of 42 to 171 votes out of 6 million cast, had there been a broad recount of all disputed ballots statewide. However, Gore never asked for such a recount. The Florida Supreme Court ordered only a recount of so-called "undervotes," about 62,000 ballots where voting machines didn’t detect any vote for a presidential candidate.