What to know about the arguments
There are 80 minutes total allotted for arguments but the court is expected to go over that timeframe.
A number of questions are likely to be debated: Is Trump an “officer” of the United States to whom Section 3 applies; who can enforce Section 3; and did Trump engage in an insurrection?
Trump is being represented by Jonathan Mitchell, a former clerk to Justice Antonin Scalia. The Colorado voters are being represented by Jason Murray, a former clerk to Justice Elena Kagan and Justice Neil Gorsuch.
Read more about what to expect here.