A theoretical politician moronic enough to genuinely believe that the elections were fraudulent - against all evidence to the contrary - should not have changed their vote. Our theoretical imbecile, after all, believes that he is defending the constitution by overturning this election.
But I do not believe, not for a moment, that any of those idiots actually exist.
I do believe that a sufficiently double-thinking representative may have convinced themselves that they were engaging in harmless political theater for the sake of energizing their base. Before the riot. This is the most generous interpretation of every politician taking the line that there was something hinky with the elections.
During and after the riot, every one of these double-thinking GOP representatives should have realized that their ‘harmless’ political theater was anything but, and that a vote to overturn the election was in direct violation of their oath of office.
My personal belief is that GOP officials have spent four years happily letting Trump dismantle American democracy and political norms, considering it acceptable collateral damage in exchange for packing the courts and having a ludicrously energized base. Every single one of them knew what they were doing and knew the enormous irresponsibility of letting Trump be Trump.
Anyway, what can be done? Nothing but voting them out. Since many of them are probably in gerrymandered districts, that means getting successfully primaried. Not gonna happen unless the GOP actually excises Trumpian ‘conservatism’ from both its platform and its base.