The mayor of Chicago held up the reporting of vote results.
When he got a call from JFK campaign manager he asked “how many votes do you need.” The results in Chicago were released and it is said by many analysts that Chicago put JFK over the top.
Nixon and the GOP knew about the fraud but Nixon decided not to challenge the results “for the good of the country.”
The repubs have been eating dem voter fraud ever since.
In fact it goes back further. Reportedly LBJ had the ballot box stuffed when he did his first congressional run.
IIRC, it was both Chicago and WVa.