Is that not what we're experiencing now?
It's hard to 'both sides' this issue with a straight face, when the biggest election denier in America is a former president and current presidential candidate. When was the last time that happened?
The closest parallel was probably Aaron Burr and his…whatever exactly he was trying to achieve in 1806-1807 in the Southwest after being dumped as VP in 1804 in part resulting from Jefferson’s suspicions that he was trying to pull electoral shenanigans in 1800. But that’s a long time ago, in very different circumstances, and not a particularly close parallel. So, never anything really similar.
But you raise a good point in that Al Gore was far more gracious when aggrieved. He comported himself with the norms established in the last 60 years during the modern mass media era.