all-important iowa caucuses. this week he defied his skeptics, extended a significant lead in the latest cnn/orc poll. look at that, he is 20 points now ahead of his closest rival, which is now senator ted cruz, that is a national poll. i want to bring in national correspondent sumlin on the ground in davenport, iowa. the reaction there from people, i know that he did talk specifically about family members of the san bernardino shooters at that speech in davenpo davenport. what did he say, how did the crowd react? >> reporter: that's right, poppy. donald trump was really making the broader point that he thinks the government needs to better monitor the families of suspected terrorists that could be in the united states, and he really went after the mother and the sister of the shooter more strongly than he has in the past, really insinuating that things that the sister said he thinks shows that she knew the plans and intentions of the shooters ahead of time.