Our judicial system, on every level including the Justice Department, is woefully corrupt and not an indicator of fact. The countless 1000s of affidavits filed by voters are the best barometer of voter fraud, if you are interested.
So you cannot point to even one court case where it was established that the 2020 presidential election was stolen. As an aside, just because an affiant states something doesn't make it true. Almost every court case where there is discovery and motions (MSJ) has competing/conflicting affidavits.