Reports from whom? The only ones that had actual evidence were from Republicans doing exactly that. Maybe a half dozen.
Also, the delay you speak of also happend in 2016, and then a huge wave of votes came in for Trump. Maybe Trump knows what happened then, so he thinkis they did it to him now.
But they didn't. All the votes wer counted, with everyone watching.
And it's not like Trump ever lied about his failures before. The man is a LOSER! Deal with it.