Republican lawmakers are on the defensive as the country heads into the holiday season, with cutbacks in food stamps stressing needy families while Congress debates how much more to cut from the Supplemental Nutrition Assistance Program (SNAP). “Which of your constituents do you think should go hungry?” asks a holiday card electronically delivered to members of Congress this week. It points out that the proposed cuts mean “less food and more hunger for millions of low income seniors, veterans, working families with children and disabled Americans.”