The amount of money spent on Capitol Hill is way more than small change — but the impact of that money is a little murky. Here, the U.S. Capitol is reflected in a fountain full of coins on Election Day this year. Mark Wilson/Getty Images hide caption

itoggle caption Mark Wilson/Getty Images

People at a Denver party early this month celebrate the recognition of an amendment to the Colorado constitution legalizing recreational use of marijuana. Brennan Linsley/AP hide caption

itoggle caption Brennan Linsley/AP