We take it for granted that every state has two representatives in the United States Senate. Apply the "one person, one vote" standard, however, and the Senate is the most malapportioned legislature in the democratic world.
But does it matter that California's 32 million people have the same number of Senate votes as Wyoming's 480,000? Frances Lee and Bruce Oppenheimer systematically show that the Senate's unique apportionment scheme profoundly shapes legislation and representation. The size of a state's population affects the senator-constituent relationship, fund-raising and elections,...

No legislature in the world has a greater influence over its nation's public affairs than the US Congress. The Congress's centrality in the US system of government has placed research on Congress at the heart of scholarship on American politics. Generations of American government scholars working in a wide range of methodological traditions have focused their analysis on understanding Congress, both as a lawmaking and a representative institution. The Oxford Handbook of the American Congress takes stock of this impressive and diverse literature, identifying areas of accomplishment and...

As Democrats and Republicans continue to vie for political advantage, Congress remains paralyzed by partisan conflict. That the last two decades have seen some of the least productive Congresses in recent history is usually explained by the growing ideological gulf between the parties, but this explanation misses another fundamental factor influencing the dynamic. In contrast to politics through most of the twentieth century, the contemporary Democratic and Republican parties compete for control of Congress at relative parity, and this has dramatically changed the parties' incentives and...