Position taking and cosponsorship in the US house

Bill cosponsorship has become an important part of the legislative and electoral process in the modem House of Representatives. Using interviews with congressional members and staff, I explain the role of cosponsorship as a signal to agenda setters and a form of position taking for constituents. Regression analysis confirms that cosponsoring varies with a member's electoral circumstances, institutional position, and state size, but generally members have adapted slowly to the introduction of cosponsorship to the rules and practice of the House.