Then how did we win the House?
To rig the presidential election only the corrupt, blue urban areas in seven swing states needed to be rigged. Even then they had to shut down the voting in all of these states and generate votes to win in 2020. Thus the Biden Vote anomoly that occurred the next morning when voting restarted in each of these swing states:
Rigging red congressional districts is much harder. And the republicans barely won in what was supposed to be a blowout election.