Since he refused to say whether he would accept the verdict of a democratic election, they're trying to equate what Gore did in the aftermath of the contested 2000 election with what Trump is doing. But that's like analogizing a fire marshal investigating the cause of a blaze to an arsonist.
But Trump's election-rigging actually are nothing new have a long history. Part of his rationale rests on accusations that the media are stacked against him. This has been a staple of Republican talking points since the days of Richard Nixon and Spiro Agnew. And his insistence that Democrats win elections through "voter fraud," mostly in large cities and minority neighborhoods, is the groundless rationalization they've used for years to justify laws aimed at disenfranchising those inclined to vote against them. In fact, voter suppression is a much bigger danger to our democracy than any vanishingly small amount of fraud.