Anna Moneymaker, David Becker, Douglas Rissing/Getty Images; Isabel Fernandez-Pujol
- Donald Trump's lawyer tells SCOTUS the Capitol attack was a "riot," not an "insurrection."
- The argument is part of a case determining Trump's eligibility for Colorado's March GOP primary.
- Most legal experts anticipate the conservative-majority Supreme Court to side with Trump.
An attorney for former President Donald Trump argued Thursday before the US Supreme Court that the January 6, 2021 attack on the Capitol was just " a riot" during a tense back-and-forth exchange with one of the high court's liberal justices over what constitutes an "insurrection."