Three Supreme Court justices skipped out on Thursday’s State of the Union address, the fourth and final one of President Joe Biden’s term in office. That has been a term in which Biden has been critical of the conservatives serving on the court — a court he threatened to pack with new justices before the 2020 election. As the country’s top legal minds entered into the U.S. House chamber on Thursday evening in Washington, Chief Justice John Roberts appeared friendly with the three court liberals — Associate Justices Sonia Sotomayor, Elena Kagan and Ketanji Brown Jackson. Associate Justices Ne…