general motivation: Reelection: These are lawmakers who "never met a voter they didn't like" and provide excellent constituent services. Good public policy: Legislators who "burnish a reputation for policy expertise and leadership". Power in the chamber: Lawmakers who spend serious time along the "rail of the House floor or in the Senate cloakroom ministering to the needs of their colleagues". Famous legislator Henry Clay in the mid-19th century was described as an "issue entrepreneur" who looked for issues to serve his ambitions. Privileges Protection Members of Congress enjoy parliamentary privilege, including freedom from arrest in all cases except for treason, felony, and breach of the peace, and freedom of speech in debate. This constitutionally derived immunity applies to members during sessions and when traveling to and from sessions. The term "arrest" has been interpreted broadly, and includes any detention or delay in the course of law enforcement, including court summons and subpoenas. The rules of the House strictly guard this privilege; a member may not waive the privilege on their own but must seek the permission of the whole house to do so. Senate rules are less strict and permit individual senators to waive the privilege as they choose. The Constitution guarantees absolute freedom of debate in both houses, providing in the Speech or Debate Clause of the Constitution that "for any Speech or Debate in either House, they shall not be questioned in any other Place." Accordingly, a member of Congress may not be sued in court for slander because of remarks made in either house, although each house has its own rules restricting offensive speeches, and may punish members who transgress. Obstructing the work of Congress is a crime under federal law and is known as contempt of Congress. Each member has the power to cite people for contempt but can only issue a contempt citationthe judicial system pursues the matter like a normal criminal case. If convicted in court of contempt of Congress, a person may be imprisoned for up to one year. Postage The franking privilege allows members of Congress to send official mail to constituents at government expense. Though they are not permitted to send election materials, borderline material is often sent, especially in the run-up to an election by those in close races. Some academics consider free mailings as giving incumbents a big advantage over challengers. Pay From 1789 to 1815, members of Congress