On April 27, Colorado filed this brief in defense of its ban on out-of-state circulators. It says that the plaintiffs, including Congressman Doug Lamborn, waited too long to file the federal lawsuit against the ban. However, Congressman Lamborn filed his federal case only two days after the Colorado Supreme Court had removed him from the Republican primary ballot.
The state says Lamborn is free to be a write-in candidate in the Republican primary. And the state says it needs a ban on out-of-state circulators because if the state needs to interview out-of-state circulators about their work, it would take too long to get in touch with them.