Senator Bernie Sanders is calling the United States spying on its allies "outrageous."
Sanders expressed the views in a letter to President Barack Obama after reports the National Security Agency spied on some 35 political leaders, most of them allies like Germany and France.
German Chancellor Angela Merkel chewed out the President this week when she learned her cell phone was tapped. These revelations come from Edward Snowden's leaked documents.
Sanders says he worries the spying will harm America's relationship with its allies. "We've got a real problem. I think we've got an agency that's a bit out of control. The idea that we are spying on leaders of countries around the world that are allied with us just brings forth mistrust and it brings forth an enormous amount of Anti-Americanism," he said.