Rep. Mark Udall, D-Colo., is photographed outside the Cannon House Office Building on Wednesday, Oct. 1, 2008, in Washington. (Photo/Kevin Wolf)

Kevin Wolf, Rep. Mark Udall, D-Colo., is photographed outside the Cannon House Office Building on Wednesday, Oct. 1, 2008, in Washington. (Photo/Kevin Wolf) (10/01/2008), [437136316] . Denver Public Library Digital Collections, accessed 17/02/2026, https://digital.denverlibrary.org/nodes/view/910481