Colorado authorities are investigating possible threats against state Supreme Court justices, Denver police said on Tuesday, one week after the court barred former President Donald Trump from the state's presidential primary ballot.
The FBI said it was assisting local law enforcement in the investigation.
The Denver Police Department also said it was providing "extra patrols" around the homes of the justices, who ruled 4-3 on Dec. 19 that Trump should be disqualified under a little-known clause of the U.S. Constitution's 14th Amendment for engaging in insurrection.