in that country. but even after our troops return from the battlefield, the fight far from over. some will have to grapple with the scars of a war, posttraumatic stress disorder, addiction, even survivor's guilt in some cases. i want to bring in david shulkin. he served as veterans affairs secretary in the trump administration until he was let go via twitter. he details that story in his book, "it shouldn't be this hard to serve your country: our broken government and the plight of veterans." i also want to bring in tom voss, an iraq war veteran, he is also the author of his own new book, called "where war ends: a combat veteran's 2,700-mile journey to heal, recovering from ptsd and moral injury through meditation." thank you both for being with me. and secretary, before we dig into this news about afghanistan, i obviously have to ask you about the impeachment news, as a former member of the trump administration, the focus in washington since september