In addition to voting, each member of the U.S. Congress can express his/her support for a piece of legislation (a bill) by registering as the legislation's official cosponsor. Cosponsorship is often a very good indication of a member's true support for and an interest in a bill. The table below shows the number of congressional bills that we track cosponsors for in our database (broken up by the Congress and the Congress chamber in which the bills were introduced).