Week In Politics: Trump Names Attorney General Nominee; Mueller Investigation Latest

President Trump will nominate William Barr to serve as the next attorney general, he told reporters at the White House on Friday morning. Also, it's been a busy week for Robert Muller's FBI investigation. Here & Now's Jeremy Hobson and Lisa Mullins talk with ABC News political director Rick Klein (@rickklein) and NPR White House reporter Ayesha Rascoe (@ayesharascoe).