we'll explore his go it alone strategy with shawna thompson of vice news, julie hirschfeld of the new york times, nancy cordes of cbs news, and michael crowley of politico. >> celebrating 50 years, this is "washington week." funding is provided by... ♪[music] >> their leadership is instinctive. they understand the challenges of today and research the technologies of tomorrow. some call them veterans. we call them part of our team. >> additional funding is provided by newman's own foundation. donating all profits from newman's own products to charity and nourishing the common good. the ethics and excellence in journalism foundation. the yuen foundation. committed to bridging cultural differences in our communities. the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you! once again, live from our nation's capital, moderator robert costa. >> good evening. this was the week a frustrated president trump took a hammer to some of the biggest pieces of his predecessor's agenda. he made significant changes to the affordable care act a