Joseph D. Neguse is an American lawyer and politician serving as the U.S. representative for Colorado's 2nd congressional district since 2019. The district is based in Boulder and includes many of Denver's northwestern suburbs, as well as Fort Collins. A member of the Democratic Party, he was a regent of the University of Colorado from 2008 to 2015. Neguse is the first Eritrean-American elected to the United States Congress and Colorado's first black member of Congress. Neguse has served as House assistant Democratic leader since 2024.

Colorado's 2nd congressional district is a congressional district in the U.S. state of Colorado. The district is located in the north-central part of the state and encompasses the northwestern suburbs of Denver including Boulder and Fort Collins. The district also includes the mountain towns of Vail, Granby, Steamboat Springs, and Idaho Springs. Redistricting in 2011 moved Larimer County, including the cities of Fort Collins and Loveland, to the 2nd from the 4th district. Meanwhile, redistricting in 2021 moved Loveland back to the 4th district and Broomfield and western Jefferson County to the 7th district.