There is ZERO evidence of "ballot harvesting" in 2020 (or any other year). Republicans like the Cyber Ninjas tried everything to prove massive election fraud flipped the results. They actually found MORE votes for Biden. Trump's allies brought more than 60 lawsuits in swing states alleging fraud, proved NONE of it and were laughed out of court. In many cases the judges were appointed by Trump. In fact, most election fraud in 2020 was by Republicans trying to vote twice for Trump.
But Republicans keep whining about fraud and passing illegal laws to limit turnout in blue areas.
Because all they care about is power and they know they can NEVER win a truly free and fair election. Republicunts HATE democracy.