Reagan started the slow move to conservative legislation by both sides of the US two-party system. It’s the reason a lot of people on social media hate everything about whoever is president.
Our liberals are center/center right, our conservatives are basically fascists and those are the two options. Most of this started with our first “celebrity” president, who was a well-known actor many years before.
Before the Reagan era, Richard Nixon had to resign his presidency for hiding some evidence. Trump was found hiding evidence and he finished his term and is running a second time (while actively fighting multiple criminal trials). The tide shift was Reagan.