The senate is made up of 100 members. There are 2 senators frrom each state. The Senators from my state, Wisconsin, are democrats Herb Kohl and Russ Feingold. Senators serve 6 year terms with no limits on the number of terms they serve. The leaders of Senate are the President of the Senate (Vice President of U.S.) and the President Pro Tempore who is the longest member of congress. To become a Senator, you need to be at least 30 years old, a U.S. citizen for at least 9 years and a legal resident of the state.