One of the problems is that there have been so many claims in recent years (from both left and right) that some election was "hacked" that people who aren't paying close attention think that it actually happens all the time. "So many cases that it's not even possible to list them all" is the impression. Except there are no documented cases of technical attacks altering US election outcomes. None. Nada. Zilch. Bupkis. Maybe it could happen, but no evidence of it yet (fingers crossed).