burst as it was touching down from karachi, fortunately everyone on board is okay. >> now, to presidential politics, a second national poll shows ben carson leading donald trump. an nbc news/"wall street journal" poll has carson six points ahead of trump with marco rubio in third place. the florida senator also surging in the latest new hampshire poll. his support there tripling since september. cnn's athena jones is live in tampa with a look at the numbers. interesting take on the numbers. what are you seeing. >> reporter: this is more evidence that carson is pulling ahead of trump in the national horse race. carson at 29%, trump at 23%. marco rubio at 11%. now, he's still far off the leaders but it's stig to see him in third place again in this new poll. one important bit of context here, we say this all the time. debates matter. and this poll was conducted both