In December, the Colorado Supreme Court issued a bombshell ruling that said Donald Trump was ineligible to be on the state’s ballot for the Republican presidential primary, saying he was disqualified under the 14th Amendment of the Constitution because he had engaged in insurrection on Jan. 6. The Supreme Court has taken on the case and on Thursday, the justices heard arguments for and against keeping Trump on the ballot. Adam Liptak, who covers the Supreme Court for The Times, analyzes the arguments, the justices’ responses, and what they can tell us about the likely ruling in a case that could alter the course of this year’s race for president. Guest: Adam Liptak, who covers the Supreme Court for The New York Times and writes Sidebar, a column on legal developments.