Trump sidesteps pre-Iowa debate as Clinton calls for one more before N.H.

Donald Trump continues to grab headlines even when he exits the stage. The Republican front-runner said he will shun the next debate because he feels one of the FOX News moderators is biased against him. Political director Lisa Desjardins offers a closer look and Gwen Ifill gets a campaign update from Paul Steinhauser of the NH1 News Network and O. Kay Henderson of Radio Iowa.