When they spout things like "Bush owns the Supreme Court!" ask them to name three SC justices. They can't.
When they spout things like "Put Saddam back in power!" ask them if they know when and how Saddam came to power initially. They don't know.
Any stupid cliche they bring up, just ask them a related question and challenge them to produce a correct factual answer instead of a hyperbolic cliche.
They never can. They'll stop discussing big issues in front of you, because they'll be intimidated.
They're idiots. The lot of them. And they absolutely hate it when you point it out conclusively;.
Actually, I've seen lefties claim the US put him in office.