Also it’s highly illegal to bet on an event you are part of (although that doesn’t seem to stop trump from doing other things).
Illegal to who?
FBI? Or some poor IT administrator who gives no shits about this issue?
Additionally, to sway public opinion, influencing pollsters
You’re using the fucking betting market as a poll. A system that is innately, and provably, influenced by money. Not even indirectly, but DIRECTLY influenced by money.
Then you paper over this fact by saying “but people want to make money”, ignoring the fact that these campaigns are literally spending $100,000,000+ sums, losing money throughout a whole campaign to try to change public opinion by about 5%.