Yes, but it's pretty minor in the grand scheme of things. Paid some hush money to a woman he slept with. And the US Constitution doesn't preclude you from being president if you have a criminal record.
He got voted in because people in the US are absolutely sick and tired of all the far-left activism resulting in things like women's sports being compromised by AMAB athletes, puberty blockers for children, pronoun policing, endless protests and riots, cancel culture, etc. Rightly or wrongly, it's just way too extreme for most people. And the left haven't helped themselves by being totally intolerant of every Trump voter and painting every one as a racist bigot. Some are, of course, but others are small business owners who need the kind of regulations that Republicans espouse, some aren't very knowledgeable, some prefer the religiousness of the Republicans, lots of reasons. It's worth knowing that a few short decades ago, the Republican party was nothing like today's party. It was much more moderate. So you'll get those party faithfuls voting, too. They're voting for old Republican principles like low government interference in people's lives, low corporate taxes to let businesses flourish, etc. and not necessarily for Trump.
The thing about women's sport really matters because those athletic scholarships are worth hundreds of thousands in fees, and the high level of college sports often leads to big things, like the Olympics and world champs and then valuable sponsorships and endorsements. It's not like being benched from the University of East Anglia's netball team. (No offence to them!)
I'm British but live in the US, in a blue state. I'm not a citizen so can't vote. I would never vote for Trump, but I don't automatically think that every Trump voter is the soul of evil either, and I can tell you that everyone I know in this deeply blue state does. The intolerance of the left has a lot to answer for in this.