Sen.-elect Angus King of Maine (far right) joins newly elected Democratic senators and Senate Majority Leader Harry Reid on Capitol Hill on Wednesday. From left: Joe Donnelly of Indiana, Tim Kaine of Virginia, Mazie Hirono of Hawaii, Reid, and Elizabeth Warren of Massachusetts. Harry Hamburg/AP hide caption

itoggle caption Harry Hamburg/AP

Voters these days often reward politicians who sit at either end of the ideological spectrum while punishing those seen as compromisers. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Senate Minority Leader Mitch McConnell says covering the uninsured shouldn't be Republicans' top health priority. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP
Robert Benincasa/NPR

Invitations to fundraisers for members of Congress frequently mention which committees they serve on. Sunlight Foundation/Political Party Time hide caption

itoggle caption Sunlight Foundation/Political Party Time