It's in quotes with a dash attribution and it's not a quote and it's not that clear this was a sarcastic quote if that was the intention.You need a link to an abundance of public information? He may not have voiced those words, but facts explain it. He would never SAY he cheated at anything or say he LIED about the 2020 election.
If he didn't voice those words no need to overplay the hand. You can compile multiple straight flushes just from the crumbs.