the newer o surgeon leads by 4 points. that was enough to put donald trump in uncharted territory campaigning in iowa. donald trump on the defensive. cnn's sarah murray was there. she has the latest. >> good morning, john, christine, donald trump showed up here in skoou sioux city iowa with more bad news, a new "new york times" pull showed trump is trailing 4% nationwide. it comes after a string of polls shows strump behind here in iowa. trump took to the stage here in the hawkeye state, pressing his reporters to work harder saying he is not giving up on victory here. >> from the time aannounced, i have been at the top of the polls, we're doing well iowa will you get your numbers up, plea please? him when you get these numbers up?