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

What's left to sanction with Russia and have existing sanctions been effective?

There's very little left to sanction with Russia that the Americans and their allies want to sanction. I mean, you could try to cut off Russian oil exports to, say, India, but no one wants to do that because that would cause a global recession. Food, fertilizer, same thing. At the end of the day, the sanctions that the West can put on Russia without a massive impact to themselves and the world they've already put. But because Biden said there'd be hell to pay if anything happened to Navalny in jail and he's dead now, and it's pretty clear the Russians, the Kremlin killed him. That means they have to sound tough. But ultimately, the only thing that is changing Russian behavior is the provision of significant military support to the Ukrainians, and that is determined by US Congress going forward.