Donald Trump's first of four criminal trials is underway in New York, where he is accused of improperly disclosing money supposedly paid to adult film star Stormy Daniels in 2016 to cover up an alleged affair. It's the first time a former U.S. president has been tried criminally. Washington Post court reporter Shayna Jacobs has been covering the trial. She walks us through what the court has heard in the opening week, what to expect as the prosecution builds its case, and how the defense plans to counter it.