Two years after Florida's notorious presidential vote in 2000, the state held a gubernatorial primary in which Janet Reno lost by 4,794 votes. There were widespread problems with electronic voting and suspicious delays for a final count. When the Miami-Dade Election Reform Coalition requested the audit data from that election, officials told it that almost all of the data had been lost in two computer crashes last year.
They lost the election results, in a fashion that was awfully convenient for them. Want to know for sure who won, or even check whether the results loosely match exit polls and demographics? Oops, too bad, all the data's gone! Like I've asked before: How are these people not in jail?!