This seems new:
American Oversight has obtained copies of phony electoral vote certificates from seven states that were submitted to Congress as part of the failed attempt to overturn the results of the 2020 election.
The fake electoral certificates were assembled by groups of Trump supporters in Arizona, Georgia, Michigan, New Mexico, Nevada, Pennsylvania, and Wisconsin who sought to replace the valid presidential electors from their state — who had been chosen by voters in free and fair elections — with bogus slates of pro-Trump electors.
So … beyond baseless allegations of widespread voter fraud, at least a few Trump allies were actively conspiring to steal the election by creating and submitting falsified slates of electors.
ETA: I see that the American Oversight article is nearly a year old. I’m working out which bit of the story is new. And this is the new part (from CNN):
The documents were first posted online in March by the government watchdog group. But they received renewed attention this week, as the January 6 committee ramps up its investigation into Trump’s attempted coup, including how his allies tried to stop states from certifying Biden’s victory, in part, by installing friendly slates of electors who would overturn the will of the voters.
I don’t remember hearing about this last March.