The Internal Revenue Service (IRS) is the revenue service of the United States federal government. The agency is a bureau of the Department of the Treasury, and is under the immediate direction of the Commissioner of Internal Revenue. The IRS is responsible for collecting taxes and the interpretation and enforcement of the Internal Revenue Code.

The IRS has its headquarters in Washington, D.C., and does most of its computer programming in Maryland. It currently operates five service centers around the country (in Austin, TX; Cincinnati, OH; Fresno, CA; Kansas City, MO; and Ogden, UT), at which returns sent by mail are received. These centers do the actual tax processing; different types of returns are processed at the various centers (with some centers processing individual returns and others processing business returns). The IRS also operates three computer centers around the country (in Detroit, Michigan; Martinsburg, West Virginia; and Memphis, Tennessee).

In July 1863, during the Civil War, President Abraham Lincoln and Congress created the office of Commissioner of Internal Revenue and enacted a temporary income tax to pay war expenses (see Revenue Act of 1862). The position of Commissioner exists today as the head of the Internal Revenue Service.

Jeanine Ferris Pirro (born June 2, 1951) is a former prosecutor, judge, and elected official from the state of New York, who is currently a legal analyst and television personality. A Republican from Westchester County, Pirro served as a county court judge before serving as the elected District Attorney of Westchester County for 12 years. As a district attorney she gained considerable visibility, especially in cases regarding domestic abuse and crimes against the elderly. She was the first female judge on the Westchester County Court bench.

Pirro was the Republican nominee for New York State Attorney General in 2006, losing to Democrat Andrew Cuomo (a fellow Albany Law alumnus). She also held the nominations of the New York Conservative and Independence Parties. She previously sought the nominations of her party for the offices of New York State Lieutenant Governor and United States Senator and withdrew her name in each case. She was a regular contributor to The Morning Show with Mike and Juliet. She is currently contributing to Today, Fox NY Good Day New York, is a Fox News legal analyst appearing on various shows, and has guest hosted shows such as Larry King Live, The Joy Behar Show and Geraldo at Large. She is a frequent guest on Fox's late-night satire show Red Eye w/ Greg Gutfeld, and also currently hosts a television program entitled Judge Jeanine Pirro. In May 2010, the show received its first Emmy nomination. Pirro is also the host of Fox News Channel's Justice with Judge Jeanine which premiered in January 2011. In 2011, Judge Pirro received the daytime Emmy Award for her TV court show "Judge Pirro."

Megyn Marie Kelly (born November 18, 1970), formerly known as Megyn Kendall, is an American journalist and news anchor employed by the Fox News Channel. Kelly currently hosts America Live from 1:00 PM to 3:00 PM EST live from the network’s New York City headquarters. She occasionally also co-hosts on America's Newsroom along with Bill Hemmer during the Fox Channel Network's Morning Line-Up at 10:00 AM EST. Since 2007, the two have hosted Fox News Channel's New Year's Eve special every year.

Kelly was nine years of age when her parents moved to Delmar, New York from Syracuse, New York. At Bethlehem Central High School, she played on the basketball and field hockey teams, as well as captaining the cheerleading squad. Kelly's father, who was on the staff of the University at Albany, died when she was 15. After high school, she pursued an undergraduate degree in Political Science from Syracuse University and later pursued a J.D. from Albany Law School; she served as an associate editor of the Albany Law Review while enrolled at Albany Law School. Kelly's first marriage to Daniel Kendall, an anesthesiologist, ended in divorce in 2006. In 2008 she married Douglas Brunt, the President and CEO of Authentium, at Oheka Castle in Huntington, New York. They have two children: Edward Yates Brunt (September 25, 2009) and Yardley Evans Brunt (April 15, 2011).

Harold Watson "Trey" Gowdy III (born August 22, 1964) is the U.S. Representative for South Carolina's 4th congressional district. He is a member of the Republican Party. Before his election to Congress, he was the solicitor (district attorney) for the state's Seventh Judicial Circuit, comprising Spartanburg and Cherokee counties.

He was born in 1964 in Greenville, South Carolina, the son of Novalene (née Evans) and Dr. Harold Watson "Hal" Gowdy, Jr. Trey graduated from Spartanburg High School in 1982. He earned a B.A. in history from Baylor University in 1986 and a law degree from the University of South Carolina School of Law in 1989.

Following law school, he clerked for the late John P. Gardner on the South Carolina Court of Appeals and United States District Court Judge Ross Anderson. He then went into private practice before becoming a federal prosecutor in April 1994. He was awarded the Postal Inspector’s Award for the successful prosecution of J. Mark Allen, one of “America’s Most Wanted” suspects.

Benjamin Solomon "Ben" Carson, Sr., (born September 18, 1951) is an American neurosurgeon and the Director of Pediatric Neurosurgery at Johns Hopkins Hospital. He was awarded the Presidential Medal of Freedom, the highest civilian award in the United States, by President George W. Bush in 2008.

Carson was born in Detroit, Michigan and was raised by his single mother, Sonya Carson. He struggled academically throughout elementary school, but started to excel in middle school and throughout high school. After graduating with honors from his high school, he attended Yale University, where he earned a degree in Psychology. He chose to go to Yale because in College Bowl, an old TV program, he saw Yale compete against and defeat many other colleges in knowledge, including Harvard. Carson wanted to participate in College Bowl, but the program was discontinued. From Yale, he attended University of Michigan Medical School.

Carson's eye-hand coordination and three-dimensional reasoning skills made him a gifted surgeon. After medical school he became a neurosurgery resident at Johns Hopkins Hospital in Baltimore. Starting off as an adult neurosurgeon Carson became more interested in pediatrics. With children he believed that "what you see is what you get, ... when they’re in pain they clearly show it with a frown on their face or when they are happy they show it by smiling brightly." Since then he has been the head of the pediatric neurosurgeon department.