." >> pbs newshour weekend is made possible by: bernard and irene schwartz. judy and josh weston. the cheryl and philip milstein family. the john and helen glessner family trust-- supporting trustworthy journalism that informs and inspires. sue and edgar wachenheim, iii. barbara hope zuckerberg. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we're your retirement company. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, hari sreenivasan. >> sreenivasan: good evening and thank you for joining us. president donald trump spent part of his day in palm beach, florida, interviewing four finalists to be his new national security adviser. three of them are active or retired army lieutenant generals. acting national security adviser keith kellogg, h.r. mcmaster., and robert caslen. the fourth candidate is former u.n. ambassador john bolton.