On Monday, the Colorado Supreme Court ruled that Republican Rep. Doug Lamborn cannot appear on the June 26 primary ballot because the signatures his campaign gathered were invalid.
Five voters sued the Colorado secretary of state, arguing that the 1,000 signatures Lamborn handed in to get on the ballot didn't count because they were gathered by petition circulators who did not live in the state. Lamborn hired a firm called Kennedy Enterprises to collect the signatures, CBS Denver reports, and they were approved by the secretary of state on March 29.
Earlier this month, a lower court ruled against the plaintiffs, but they appealed, leading to the state Supreme Court decision. An attorney for Lamborn's campaign said he plans on appealing in federal court. A six-term congressman, Lamborn represents the conservative 5th congressional district.