LOL, it isn’t complicated, Trump supported Carter for 1980, not Regan, and they weren’t friends, and Trump didn’t actually know Reagan, there has been a huge effort to connect Trump to Reagan and 10 years ago it was very elaborate with internet planted fake stories of Trump and his father hosting a fundraiser for Reagan and other connections that never happened.
Look at the photos, they are pretty standard rub shoulders with important people and rich potential donors stuff.
Laughing out loud, you in your comment to me supported the man who supported Carter, so it still is complicated.