Evidence is presented to a Grand Jury. They do not require proof, they render an opinion based upon evidence.

After an indictment proof is required for a conviction. This is done in a court of law.

Those denying this rigged election not only have no proof the election was clean, they have virtually no evidence for that at all. All the deniers of a rigged election have are strong opinions and perhaps a desire or hope that their party is not as corrupt as this rigged election would indicate.

I wish it weren't true that the 2020 election was rigged. I wish we could trust our elections. But that is simply not the case.