Looking at all the presidential bets, I can't really understand why do you guys have republican nominee, is it because there could be an impeachment? I mean normally the republican incumbent president will also be the nominee from the republicans as well, there is no debate, no fight for it, Trump will just get it no matter what.

I understand that right now there is an investigation towards Ukraine thing he did which could result in impeachment but Senate is mostly republican and you need 2/3 so even if they get "some" republican senators to vote for impeachment it won't be enough, they need many republican senators to vote for it. Of course it is a very high odd (1.08 right now) for Trump to be nominee again but it looks like it is easy money for everyone. There are actually votes for other candidates which is very weird as well.