Also consider that showing people at the machines is not proof of tampering. Yes, that'w the only rational explanation, and, it can be easily dismissed as insufficient.

Kari is stoking rumors of a senate run, she knows she's not going to win but can't give up because of optics. All of the moves now are to cement her cause was just for when the USSC refuses to hear it. Then she'll fund raise off of that for the senate campaign to "strike back". It's sad and distasteful but true.