assad regime. we'll be calling on the assad regime to be held accountable for their crimes against humanity. this is a despicable act and this administration, administrations around the world cannot sit idly by and do nothing. >> listen to these strong words from nikki haley earlier today. >> reporter: russia cannot escape responsibility for this. in facts, if russia had been fulfilling their responsibility, there would not be any chemical weapons left for assad to use. senator, how do you explain tough condemnation of russia and its support for assad as well as the president's silence when it comes to russia, he doesn't even mention russia's involvement in