In 1978, Richardson moved to Santa Fe, New Mexico, and ran for the House of Representatives in 1980 as a Democrat, losing narrowly to longtime 1st District representative and future United States Secretary of the Interior Manuel Lujan (R). Two years later, Richardson was elected to New Mexico's newly created third district, taking in most of the northern part of the state. Richardson spent 14 years in Congress, representing the country's most diverse district and holding 2,000 town meetings.  Richardson served as Chairman of the Congressional Hispanic Caucus in the 98th Congress (1983-1985) and as Chairman of the House Natural Resources Subcommittee on Native American Affairs in the 103rd Congress (1993-1994). Richardson sponsored a number of bills, including the American Indian Religious Freedom Act Amendments, the Indian Dams Safety Act, the Tribal Self-Governance Act, and the Jicarilla Apache Tribe Water Rights Settlement Act.  He became a member of the Democratic leadership as a deputy majority whip, where he became friends with Bill Clinton after they worked closely on several issues, including when he served as the ranking House Democrat in favor of NAFTA's passage in 1993. For his work as a back channel to Carlos Salinas de Gortari, Mexico's president at the time of the negotiations, he was awarded the Aztec Eagle Award, Mexico's highest award for a foreigner. Clinton in turn sent Richardson on various foreign policy missions, including a trip in 1996 in which Richardson traveled to Baghdad with Peter Bourne and engaged in lengthy one-on-one negotiations with Saddam Hussein to secure the release of two American aerospace workers who had been captured by the Iraqis after wandering over the Kuwaiti border. Richardson also visited Nicaragua, Guatemala, Cuba, Peru, India, North Korea, Bangladesh, Nigeria, and Sudan to represent U.S. interests and met with Slobodan Milosevic. In 1996, he played a major role in securing the release of American Evan Hunziker from North Korean custody and for securing a pardon for Eliadah McCord, an American convicted and imprisoned in Bangladesh. Due to these missions, Richardson was nominated for the Nobel Peace Prize three times.

Answer this question "How long was he in the office?" by extracting the answer from the text above.
14 years