This week the Supreme Court heard a landmark case about whether former president and current Republican front-runner Donald Trump should be allowed on the ballot this year. The state of Colorado argued that his role in the January 6, 2021 insurrection makes him ineligible, but Trump’s lawyers attempted to convince the court that one state cannot disqualify a presidential candidate under the 14th amendment to the Constitution. CNN Senior Supreme Court analyst Joan Biskupic untangles this complicated legal issue with CNN Political Director David Chalian.