text:  because she said the appointment of special counsel Jack Smith was unconstitutional. It's a stunning decision, removing one of the biggest legal challenges facing Trump as the Republican National Convention kicks off in Milwaukee today. The case involved the retention and mishandling of boxes of classified documents, and many legal experts considered it to be the strongest case against the former president. For more, let's bring in Greg Allen. He's NPR's Miami correspondent. He's been covering the case. Greg, good to have you.