There was throwing out and refuse to count mail in ballots with out dates stamped in Pennsylvania. They did have fire bombing of ballot drop off boxes. There was phone calls from Russia. There was a media platform manipulating the news to be right wing.

While I don’t think it wouldn’t have changed anything Kamala did lose by just over 250k votes in 4 states.

I’m not one for conspiracy theories, and we don’t have any evidence to back up any sort of claims of rigging or election fraud. In fact, the various lawsuits Trump initiated in the last cycle and audits and recounts and so on provided a pretty damning pile of evidence for “not rigged”.

Republicans aren’t rigging elections themselves. There’s no tomfoolery going on with voting machines, or people voting twice, or similar. They’re “rigging” it with legal means – disenfranchising voters, suppressing turnout, financing third party candidates to peel votes away from the other side, gerrymandering districts, and using massive propaganda systems to influence who decides to vote and what they choose when they do vote.

All said, though, we can always make the system more robust, and increase both voters’ confidence in the system and allay any fears of actual rigging. But election reforms are often a “Democrat” issue, so almost any Republican will oppose meaningful reforms that don’t do one of the things above to suppress voters.