It's an onion. The sudden changing of laws through a flurry of executive action at the state level, court actions, and even just having voting officials issue new rules on the local level all occurred as a first layer, citing Covid this happened in a timeframe before the election making any court remedy beforehand difficult. At the same time the multiple law firms lined up by the trump campaign at once said they could not go again COVID related policies and left. This includes new ballot procedures, actions in Wisconsin regarding definitions of indefinitely confined, etc. the second layer would be actions like traditional ballot fraud, fraud of multiple voting, dead voting, harvesting ballots at senior centers or while family couldn't access people and having staff fill out their ballots for an entire wing of a nursing home/etc. then you can get to the criminal weirdness like the many, many statements under penalty of perjury regarding people seeing stacks of ballots appear suddenly. You also have signature failure rates go to basically zero from being significant numbers in all previous years. You then have the more wide conspiracy involving the dominion machines counting mishaps in large cities where massive differences between voters and ballots still exist that can't be explained. Because video is illegal in counting areas, ballots were immediately destroyed, sometimes against court orders, and once a ballot is taken out of its envelop and counted it can't be reversed due to privacy requirements, evidence is near impossible to obtain.