“When asked if they thought it was ‘constitutional or unconstitutional for the president of the United States to order the killing of American citizens who are suspected of being terrorists,’ 57 percent of respondents said they thought it was unconstitutional, including 65 percent of Republicans, 64 percent of independents, and 44 percent of Democrats.”
http://reason.com/blog/2013/03/01/americans-obama-drones-unconstitutional