pressure they're feeling from the united states. >> that's one thing. what the iranians are doing to push back. what else are you looking at, though, today, in terms of signs that there is another shift happening in the region? >> well, i think the big question mark here, erica, is not so much in the region, it's in washington, d.c. you're getting very conflicting and mixed signals from president trump. remember that last week, you had the tanker attacks. then on monday, president trump said they're very minor. seemed to dismiss their importance, and perhaps encourage further iranian escalation. now, today, you have donald trump tweeting that the iranians made a very big mistake. we don't know what that means and it suggests some u.s. retaliation. and from weeks he said he doesn't want war. he wants to talk. >> as you just heard from fred pleitgen, they're saying, listen, we don't want war either, but we are prepared. let's look at this region in