From the 1910 overthrow of "Czar" Joseph Cannon to the reforms enacted when Republicans took over the House in 1995, institutional change within the U.S. Congress has been both a product and a shaper of congressional politics. For several decades, scholars have explained this process in terms of a particular collective interest shared by members, be it partisanship, reelection worries, or policy motivations. Eric Schickler makes the case that it is actually interplay among multiple interests that determines institutional change. In the process, he explains how congressional institutions...