...
One now defunct online site was offering 7:1 for Trump to win. Some people cleaned up (sadly I wasn't one of them only due to a lack of BTC at the time to place a wager) - which is probably why that site ended up going downhill fairly quickly afterwards.
Seriously if a casino offers that kind of odds
today on a Trump win then I guarantee you something is wrong with their odds provider, the odds of him winning should not be that high and today it would make more sense if it was around @1.7 or something.
But to my understanding these were bets on the 2016 presidential election which was a different playing field, Trump was sort of a dark horse in the election and nobody really expected him to win at all.