We rated each current Member of Congress on various criteria that demonstrated power and the ability to be effective in Congress in 2007 and 2008. This resulted in a Power Score that ranked members for overall power in each chamber of Congress in our Power Rankings. * How we calculate the Power Rankings * Sign up for future updates * Don't know your Member of Congress? Look them up by ZIP Code * Biggest Gainers in 2008 Power Rankings * Presidential Candidates - Power Rankings Teahen joins race for seat in CongressState senator enters GOP race for Doolittle congressional seatMuseum directors add culture to congress agendaXi, Li May Emerge as Likely Hu, Wen Successors at China People's CongressDemocrats, Republicans Bend Agendas in Congress to Fit Election-Year GoalsDingell: Congress to subpoena owner of firm in recalled meat caseNational Briefing Southwest: Arizona: Congressman Pleads Not GuiltyKucinich Wins Democratic Primary, Overcoming Tough Challenge In Ohio Congressional RaceCongress candidates sprinting to primaryMuseum directors add culture to congress agendaChina's annual National People's Congress opensFormer TV judge wins congressional primaryOhio's Kucinich in fight for congressional districtArizona Congressman Renzi pleads not guiltyHorse Lovers Ask Congress To Stop Horse SlaughterTribune Endorses Democrat Foster In Tight Congressional RaceObama appearing in TV ad for Ill. congressional candidateArizona Congressman Renzi pleads not guiltyBowling Congress faces a 7-10 split on decision to moveCongress Plans to Subpoena Owner of Calif. SlaughterhouseArizona congressman pleads not guilty to fraud, extortionCongress To Subpoena Calif. Slaughterhouse OwnerCongress to Probe TSA, Flight SchoolsBowling Congress faces a 7-10 split on decision to moveCongress To Subpoena Calif. Slaughterhouse OwnerIndicted Congressman Pleads Not GuiltyAriz. congressman pleads not guiltyOaks decides not to run for Walsh's congressional seatBarnes files papers for congressional raceCongress targets tax dodgers in CaymanBowling Congress to meet Sunday to consider HQ moveWalz: Partisan fighting is hurting CongressDavis explores a third campaign for Reynolds' congressional seatCedar Rapids man to run for Second Congressional District seatIndicted Congressman Set to Appear In CourtTourism Congress meetings slatedCongress likely to examine Air Force tanker decisionOregon Congressman Wu draws a GOP challengerCongress prepares to subpoena Chino meat plant CEOCongress likely to examine Air Force tanker decisionCongressional Candidates Eye Obama's CoattailsPeople's Congress to assess economyKansas Congressional Race Already Heating UpZirkle: Why not segregate the states? :Congressional candidate cites blacks in prison, unwed mothers; critics blast his comments.Agenda of 1st Session of 11th National People's CongressCallaghan wont run for Congress