By Tina Rosenberg
Americans have always vastly overestimated how much we spend on foreign aid. A 2010 survey asked Americans what percentage of the federal budget went to foreign aid. The median response was 25 percent. When asked what percentage would be appropriate, the answer was 10 percent. Polls going back at least a decade show similar responses. In fact, foreign aid accounts for less than 1 percent of the federal budget.