Firstly, there was plenty of evidence, just no judges from the lowest courts to the SCOTUS willing to hear the cases, nor examine the evidence. Secondly, there were in place quite enough regulations to have prevented the ballot fraud, but obviously no one willing to enforce them. You see my silly leftist, laws and regulations are just words on paper if no one upholds them. And just as in the democrats stealing many elections in 2016, none of those cases were taken, evidence weighed, and election results reversed....so basically 2016 was just a trial run for 2020. The DNC has hit upon a winning strategy. Pack the courts with their allies to insure that any missteps in the ballot fraud process gets swept under the rug.

As for not cheating "on the behalf of the down ballot candidates they also needed", did they really need them that bad? With the furor over the cheating they did do, was the marginal benefit worth the increased risk? The DNC has everything it wanted. Trump gone. Four years to flood the country with illegals (er, I mean newly minted democracts), gut the 1st & 2nd Amendments, begin the conversion to commification, eliminate any pesky regulations that stand in the way, and streamline the ballot fraud methodology to make it even easier (and less detectable) in 2024. Oh yeah, and get their long delayed and much beloved first female president...hell, they might even get Killary into the vacated VP seat....and eventually shoehorn her into the presidency. All it takes is for an old coot to get declared incompetent, or Clintoncided, and “The game is afoot".