The Gore campaign tried to reject all US servicemen absentee ballots and filed suit to not allow then to be counted.
The Gore campaign tried to reject all US servicemen's absentee ballots that did not have postmarks.
Military law requires postmarks on all mail going through the postal system.
There still has not be a full investigation on why there was military mail without a postmark.
Note: Civilian mail without a postmark would be rejected.