the president is right now at the university of iowa. we're expecting to hear and call on congress to freeze college interest rates to help stem soaring student debt that they could see by the summer. this is not an official campaign stop but it remains to be seen whether the president will directly engage mitt romney, a man they call the presumptive nominee. romney certainly not holding back after his sweep last night and lashed out against the president's performance in office and pounded the message that he says he can do a better job. >> the last few years have been the best that barack obama can do. it is not the best america can do. i see an america with a growing middle class, with rising standards of living. i see children even more successful than their parents, some successful even beyond their wildest dreams and others congratulating them for their achievement, not attacking them for it. >> joining me, news deputy