While there is a great deal of evidence that there was voter fraud that took place in Pennsylvania, Michigan, possibly Wisconsin and Georgia, (lots of INDIRECT evidence) I have not seen any DIRECT evidence.
I have no doubt that the lots of "found" ballots ( those tranches of ballots that that came in well after the deadline and oddly, in strange ways) that were overwhelmingly for Biden (to the point of statistical impossibility) were manufactured and illegal votes. Similarly the "late" votes and the ones with illegible (or no) postmarks that were allowed contrary to election law that were also, oddly overwhelmingly statistically unlikely for Biden that should not have been counted...Not to mention the mail-in ballots that had either missing or non matching signatures that also were allowed...and again, were overwhelmingly for Mr. Biden.
Having said that, despite the words of Donald the Trump and his henchman Giuliani stating otherwise, I have not seen (at least so far) any court cases nor evidence that would force a recount. It is getting a bit late if they truly have the evidence they claim that they can take to the courts. If they got some, it is time to ante up. We have heard a lot of words, but seen no action.
If they don't do so soon, then I feel that the election is lost.