The US Political System: A View from the Confused UK>

I currently reside in the UK, but lived in the US for much of my life. Many Brits I know or have overheard in pubs find the US political system extremely confusing. Trump's attack on Iran has prompted new questions about it; notably his ability to start a war without the approval of the so-called representatives of the people: Congress. OK, I know Brits find other things American confusing, like…