A man was arrested for breaching the Colorado Supreme Court building, holding a guard at gunpoint, and firing shots, causing extensive damage but no injuries. The incident, occurring after the court barred Donald J. Trump from Colorado’s 2024 presidential primary ballot, raised tensions amid threats against the justices. The gunman surrendered to authorities and faces investigation for robbery, burglary, and arson. In a separate incident, Maine’s secretary of state faced threats after barring Trump from the state’s primary ballot.