Mark Udall (born July 18, 1950, American politician, has been a Democratic member of the United States House of Representatives since 1999, representing the 2nd District of Colorado. The district is based in Boulder and includes most of Denver's northwestern suburbs, along with several ski resorts.
He was born in Tucson, Arizona, the son of Morris "Mo" Udall, a former congressman from Arizona and candidate for the Democratic Presidential nomination in 1976. He is a cousin of Congressman Tom Udall of New Mexico and Senator Gordon Harold Smith of Oregon, and nephew of former Interior Secretary Stewart Udall.
Mark Udall graduated from Canyon del Oro High School, located in the Tucson suburb of Oro Valley in 1968. He graduated from Williams College in 1972 and moved to Colorado. He was a faculty member at Colorado's Outward Bound School for 20 years, the last ten as executive director.
After only one term in the Colorado State House of Representatives, Udall won the Democratic nomination for the 2nd District in 1998 after 12-year incumbent David Skaggs retired. The race was unexpectedly close, with Udall only defeating Boulder's Republican mayor, Bob Greenlee, by two points. However, he has since been reelected three times with little trouble.
Udall announced in 2004 that he would run for the Senate against Republican incumbent Wayne Allard in 2008.