Don GonyeaDon Gonyea is a NPR National Political Correspondent based in Washington, D.C., and travels throughout the United States covering elections and the country's political climate. His reports can be heard on all NPR programs and at NPR.org.
President Obama shakes hands as he arrives at a rally Tuesday on the University of Wisconsin campus in Madison, Wis.
Ken Buck accepts the Republican nomination for Senate on Aug. 10 in Loveland, Colo. Buck, the Weld County district attorney, defeated former Colorado Lt. Gov. Jane Norton in the primary.
Eric Bellamy/The Daily Tribune/AP