with a look at the responses. >> asking our viewers in light of the supreme court development and also the president's address last night, is gun control an effective tool against terrorist attacks? asking our viewers. here's how we're looking so far. 81% of the viewers say, yes, is an effective tool. 19% say, no. we're just launching this now. feel free to weigh in. pulse.msnbc.com to chime in and we'll check that later on. >> frances, thank you very much. still ahead for everybody, big news in the republican race for president. a major shakeup in iowa polling. ted cruz takes the top spot for the first time in that key state. do americans feel safer after president obama's speech to the nation last snigt steve kornacki joins me with a panel of voters and what they're telling him about it.