John Wright Hickenlooper Jr. (; born February 7, 1952) is an American politician, businessman, and geologist serving as the junior United States senator from Colorado since 2021. A member of the Democratic Party, Hickenlooper was mayor of Denver from 2003 to 2011 and governor of Colorado from 2011 to 2019.
Born in Narberth, Pennsylvania, Hickenlooper is a graduate of Wesleyan University. After a career as a petroleum geologist, he co-founded the Wynkoop Brewing Company in Denver in 1988. Hickenlooper was elected the 43rd mayor of Denver in 2003, serving two terms. After incumbent governor Bill Ritter said that he would not seek reelection, Hickenlooper announced his intention to run for the Democratic nomination in January 2010. He won an uncontested primary and faced Constitution Party nominee Tom Tancredo and Republican Party nominee Dan Maes in the general election. Hickenlooper won with 51% of the vote and was reelected in 2014, defeating Republican Bob Beauprez.
As governor, he introduced universal background checks and banned high-capacity magazines in the wake of the 2012 Aurora, Colorado shooting. He expanded Medicaid under the provisions of the Affordable Care Act, halving the rate of uninsured people in the state. Having initially opposed marijuana legalization, he has gradually come to support it.
He sought the Democratic nomination for president of the United States in 2019 but dropped out before primaries were held. He subsequently ran for the U.S. Senate, winning the Democratic nomination and the general election, defeating incumbent Republican Cory Gardner. At 68, Hickenlooper became the oldest first-term senator to represent Colorado and the only Quaker member of Congress.


== Early life, education, and career ==
Hickenlooper was born in Narberth, Pennsylvania, a middle-class area of the suburban Main Line of Philadelphia. He is the son of Anne Doughten (née Morris) Kennedy and John Wright Hickenlooper. His great-grandfather Andrew Hickenlooper was a Union general, and his grandfather Smith Hickenlooper was a United States federal judge.
Hickenlooper was raised by his mother from a young age after his father's death. A 1970 graduate of The Haverford School, an independent boys school in Haverford, Pennsylvania, he went on to attend Wesleyan University, where he received a B.A. in English in 1974 and a master's degree in geology in 1980. He recounted first smoking pot when he was 16 and using lithium carbonate capsules to go through with his final exam.Hickenlooper worked as a geologist in Colorado for Buckhorn Petroleum in the early 1980s. When Buckhorn was sold, Hickenlooper was laid off in 1986. He and five business partners opened the Wynkoop Brewing Company brewpub in October 1988 after raising startup funds from dozens of friends and family along with a Denver economic development office loan. The Wynkoop was one of the first brewpubs in the United States. By 1996, Westword reported that Denver had more brewpubs per capita than any other city. He alleges his restaurant was the first to offer a designated driver program in Colorado.In 1989, Hickenlooper was arrested in Denver for "driving while impaired" and did community service.


== Mayor of Denver ==
In 2003, Hickenlooper ran for mayor of Denver. Campaigning on his business experience, he developed a series of creative television ads that separated him from the rest of the crowded field, including one in which he addressed unhappiness over a recent increase in parking rates by walking the streets to "feed" meters. He won the election and in July 2003 he took office as the 43rd mayor of Denver. TIME Magazine named him one of America's five best big-city mayors in 2005.On taking office, Hickenlooper inherited a "$70 million budget deficit, the worst in city history", which he was able to eliminate in his first term "without major service cuts or layoffs", according to Time. He won bipartisan support for a multibillion dollar mass public transit project, intended in part to attract investment and funded by a voter-approved sales tax increase.In 2003, Hickenlooper announced a ten-year plan to end homelessness in Denver, citing it as one of the issues that prompted him to run for mayor. 280 U.S. cities announced similar plans. The effort did not end homelessness in Denver, and in 2015 Denver's city auditor "released a scathing audit faulting the plan's implementation." The head of the agency responsible defended the program, saying it was "still housing 300-400 people a month in varying ways", while Hickenlooper argued that the point of such an ambitious target was to focus attention and resources on the problem. In his governor's budget request for 2017–18, he asked lawmakers to allocate $12.3 million from taxes on marijuana to building homes for chronically homeless people.Hickenlooper established the Denver Scholarship Foundation, providing needs-based college scholarships to high school graduates.In May 2007, Hickenlooper was reelect