Are there any bitcoin sites still taking wagers on this?
Betmoose.com and Fairlay.com are still accepting US presidential election-related bets (buying and selling on both sides).
One by one the Republican delegates are certifying wins for Joe Biden, so the era of Trump is now over. Anyone taking bets at this point for an election that is over are scamming people. Anyone placing bets is being scammed.
I have a hard time seeing why would that make one a gambler a scammer and the other one a scammee as it's all public knowledge and it's not like there's any proof of anyone taking bets manipulating the election process.