Updated at 3:10 p.m. ET
Amid much pomp and circumstance, the Senate took some of its first steps on Thursday to prepare for next week's impeachment trial of President Trump, just the third such trial in Senate history.
Chief Justice John Roberts, having crossed First Street from the Supreme Court building over to the Capitol, joined senators in the chamber and then was sworn in by Senate President pro tempore Chuck Grassley of Iowa. Roberts will preside over the trial.