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

Kevin Wolf, Rep. Mark Udall, D-Colo., is photographed in his office in the Cannon House Office Building on Wednesday, Oct. 1, 2008, in Washington. (Photo/Kevin Wolf) (10/01/2008), [437136322] . Denver Public Library Digital Collections, accessed 14/03/2026, https://digital.denverlibrary.org/nodes/view/910502