At Monday's White House Summit on Working Families, first lady Michelle Obama admitted to a few of her own struggles as a working mother while making the case for flexible workplace policies for families. "The first thing I tried to do, which was a mistake, was that I tried the part-time thing…I realized I was getting gypped on that front," she told ABC's Robin Roberts at the event, which aimed to bring attention to strengthening the nation's workforce by addressing various workplace difficulties. "What happened was I got a part-time salary but worked full time."