I studied Govt & Politics/British Constitution at 6 Form College back in the 70s..
None of us could really make any sense of the American political system...
If I remember correctly, even our middle aged lecturer was just as mystified by how it worked...???

I honestly still don't understand it...

Apart from "Wealth + Lies = Win"...

But that still don't explain how a relatively honest decent man Like Obama got in...???