When the nine justices making up the Supreme Court convene on Thursday, they will try to decide whether the Civil War-era Section 3 of the 14th Amendment — barring anyone from seeking office who once took an oath to uphold the Constitution but then “engaged” in “insurrection or rebellion” against it — applies to the presidency and Trump. Former federal prosecutor Elie Honig is especially interested in how the court’s three liberal-leaning justices will engage when they hear oral arguments in the case. “It’s going to be fascinating,” he said. ALSO READ: Alina Habba is persona non grata at her P…