How the balance of power has shifted between the Republicans and Democrats.
His Cairo speech asserted that a country should not impose its system of government upon another.
Success of the 9/11 commission means lawmakers often punt toughest investigations to independent bodies – despite some internal resistance.
Illinois' ex-governor, the subject of a hit musical, is relentlessly seeking the limelight. Will it help him if he ends up going to trial?
A quiz where you see how many words you can find that have the letters "ght" in them.