David Martin McIntosh (born June 8, 1958) is an American attorney and Republican Party politician who served as the U.S. representative for Indiana's 2nd congressional district from 1995 to 2001. He is a co-founder of two conservative political groups, The Federalist Society and The Club for Growth.^[1]

McIntosh was the Republican nominee for Governor of Indiana in 2000, losing to Democratic incumbent Frank O'Bannon. He was an unsuccessful candidate for the Republican nomination in Indiana's 5th congressional district in 2012.

McIntosh was born in Oakland, California, the son of Jean Marie (Slough), a judge, and Norman McIntosh.^[2] He moved to his mother's hometown of Kendallville, Indiana, at age five after his father died.^[3]

McIntosh attended Yale University, where he was a member and later president of the Yale Political Union and, despite his political orientation, its Progressive Party.^[4] He graduated with a B.A. (cum laude) in 1980, and later received a J.D. from University of Chicago Law School in 1983.^[5] McIntosh was taught at Chicago by Antonin Scalia, who later became a Supreme Court Justice.^[6] He is also a co-founder of The Federalist Society.^[7]

During the Reagan Administration, McIntosh served as Special Assistant to the Attorney General and as Special Assistant to the President for Domestic Affairs.^[5]

In George H. W. Bush's administration, he served as executive director of Vice President Dan Quayle's Council for Competitiveness.^[8] In that role, he emphasized limiting or rolling back environmental regulations that the Council saw as inimical to economic growth^[9] – such as a redraft of the Clean Air Act which would allow for companies to increase pollution emissions without notifying the public.^[10]

In 2000, McIntosh ran for Governor of Indiana, but lost to incumbent Democrat Frank O'Bannon, 57 percent to 42 percent. His campaign was built around a 25 percent guaranteed property tax cut, but he never provided details on how he would accomplish it.^{[citation needed]}

Since 2001, McIntosh has been a partner in the global law firm of Mayer Brown.^[5] In 2009, he served as a political advisor to conservative lobby groups on Sonia Sotomayor's nomination to the Supreme Court.^[18]