Ian Bremmer shares his insights on global politics this week on World In :60.

Might Congress take actions against members of Congress who play down threats for political reasons?

I suspect not. Obviously very disturbing that we are so tribal, we are so polarized that when you see political violence against people like Nancy Pelosi, the Paul Pelosi thing, knocked unconscious by a hammer, a guy goes into his house... And Gabby Giffords and Steve Scalise. This is getting normalized in the United States, and it should never be normalized. And in part it is because if it doesn't happen to your side, you don't pay attention to it. It's not such a big deal. That's not where the country needs to be, but it is where we are presently given just how dysfunctional this feeling of, "If you're not with me, you're my enemy," politically inside the United States. This is a natural impact of that occurring.