Donald Trump's momentum in Iowa could be stalled by Republican women in the state. Polls show the billionaire is not doing as well with women as he is with men. Meanwhile, Ted Cruz, who has a smaller gender gap, is catching up. And, Marco Rubio, who does better with women than men, is surging into third place. PANEL: Anushay Hossain, Patricia Sosa, Rina Shah, Ashe Schow