The Standing Rules of the Senate are the rules of order adopted by the United States Senate that govern its procedure. The Senate's power to establish rules derives from Article One, Section 5 of the United States Constitution: "Each House may determine the rules of its proceedings..."

There are currently 43 rules, with the latest version having been adopted on April 27, 2000. (The Legislative Transparency and Accountability Act of 2006 lobbying reform bill introduces a 44th rule on earmarks). The stricter rules are often waived by unanimous consent.

The Constitution provides that a majority of the Senate constitutes a quorum to do business. Under the rules and customs of the Senate, a quorum is always assumed to be present unless a quorum call explicitly demonstrates otherwise. Any senator may request a quorum call by "suggesting the absence of a quorum"; a clerk then calls the roll of the Senate and notes which members are present. In practice, senators almost always request quorum calls not to establish the presence of a quorum, but to temporarily delay proceedings. Such a delay may serve one of many purposes; often, it allows Senate leaders to negotiate compromises off the floor. Once the need for a delay has ended, any senator may request unanimous consent to rescind the quorum call.

Gerald W. "Jerry" Moran (born May 29, 1954) is the junior United States Senator from Kansas and a member of the Republican Party. Previously, he served as a member of the United States House of Representatives, representing Kansas's 1st congressional district.

Raised in Plainville, Kansas, Moran graduated from the University of Kansas and the University of Kansas School of Law. He worked in private law and served as the state special assistant attorney general (1982–85) and deputy attorney of Rooks County (1987–95). He served in the Kansas Senate (1989–1997), and was majority leader for his last two years. He was elected to the House of Representatives in 1996 and served six terms with little electoral opposition. He was elected to the U.S. Senate in a landslide in 2010. He is the ranking member of the Senate Appropriations Subcommittee on Financial Services and General Government and has a strongly conservative voting record.

Moran was born in Great Bend, Kansas, the son of Madeline Eleanor (née Fletcher) and Raymond Edwin "Ray" Moran. He was raised in Plainville. He attended Fort Hays State University before enrolling at the University of Kansas in Lawrence, where he earned a Bachelor of Science degree in economics in 1976. While attending the University of Kansas, he worked as a summer intern for U.S. Representative Keith Sebelius in 1974, when impeachment proceedings were being prepared against President Richard Nixon.

Rafael Edward Cruz, known as Ted Cruz (born December 22, 1970), is the former Solicitor General of the U.S. state of Texas, a position which he held from 2003 to May 2008. Cruz was appointed by Texas Attorney General Greg Abbott. He was the first Hispanic Solicitor General in Texas, the youngest Solicitor General in the United States, and had the longest tenure in the post thus far in Texas history. He is currently a partner at the law firm Morgan, Lewis & Bockius, where he leads the firm’s U.S. Supreme Court and national appellate litigation practice.

Cruz is a candidate for the 2012 Republican nomination for the United States Senate seat being vacated by Kay Bailey Hutchison.

Cruz previously served as the director of the Office of Policy Planning at the Federal Trade Commission, an Associate Deputy Attorney General at the United States Department of Justice, and as Domestic Policy Advisor to U.S. President George W. Bush on the 2000 Bush-Cheney campaign. In addition, from 2004-2009 Cruz was an Adjunct Professor of Law at the University of Texas School of Law in Austin, where he taught U.S. Supreme Court litigation.

Harry Mason Reid (born December 2, 1939) is the senior United States Senator from Nevada, serving since 1987. A member of the Democratic Party, he has been the Senate Majority Leader since January 2007, having previously served as Minority Leader and Minority and Majority Whip.

Previously, Reid was a member of the U.S. House of Representatives, representing Nevada's 1st congressional district, and served in Nevada local and state government as city attorney of Henderson, a state legislator, the 25th Lieutenant Governor, and chairman of the Nevada Gaming Commission.

As Senate Majority Leader and a member of the Church of Jesus Christ of Latter-day Saints, Harry Reid has achieved a more senior elected position in the United States government than any Mormon in history.

Reid was born in Searchlight, Nevada, the third of the four sons of Inez Orena (née Jaynes), a laundress, and Harry Vincent Reid, a miner. His paternal grandmother was an English immigrant from Darlston, Staffordshire. Reid's boyhood home had no indoor toilet, hot water or telephone. Searchlight had no high school, so Reid boarded with relatives 40 miles away in Henderson, Nevada to attend Basic High School where he played football, and was an amateur boxer. While at Basic High he met future Nevada governor Mike O'Callaghan, who was a teacher there. Reid attended Southern Utah University and graduated from Utah State University where he double majored in political science and history. Reid also minored in economics from the Jon M. Huntsman School of Business. He then went to George Washington University Law School earning a J.D. while working for the United States Capitol Police.

Rachel Anne Maddow (pronounced /ˈmædoʊ/; born April 1, 1973) is an American television host, political commentator, and author. Maddow hosts a nightly television show, The Rachel Maddow Show, on MSNBC. Her syndicated talk radio program of the same name aired on Air America Radio. Maddow is the first openly gay anchor of a prime-time news program in the United States.

Asked about her political views by the Valley Advocate, Maddow replied, "I'm undoubtedly a liberal, which means that I'm in almost total agreement with the Eisenhower-era Republican party platform."

Maddow was born in Castro Valley, California. Her father, Robert B. "Bob" Maddow, is a former United States Air Force captain who resigned his commission the year before her birth and found civilian work as a lawyer for the East Bay Municipal Utility District. Her mother, Elaine Maddow (née Gosse), is a school program administrator from Newfoundland, Canada. She has one older brother, David. Her father is of Russian and Dutch descent and her mother is of English and Irish ancestry. Maddow's mother was raised a strict Roman Catholic, and Maddow herself grew up in a community that her mother has described as "very conservative." Maddow was a competitive athlete and played three sports in high school. Referencing John Hughes films, she describes herself in high school as "a cross between the jock and the antisocial girl."