Joe Biden has officially been sworn in as the 46th president of the United States. He plans to sign 17 executive actions on Wednesday. NPR White House correspondent Ayesha Rascoe joins us. Also, on the campaign trail, Biden called Russia the biggest threat to U.S. security. Now that Biden is in the White House, what will the future of U.S.-Russia relations look like? NPR Moscow correspondent Lucian Kim explains.