National security adviser Mike Waltz is expected to depart from the Trump administration in the coming days, two sources familiar with the matter told CNN, the first major staff shakeup since the president took office in January. Waltz’s job has been in limbo after it was made clear to him earlier this week that his time leading the National Security Council had come to an end, according to a source familiar with the matter. Alex Wong, the deputy national security adviser, and other national security advisers are also expected to depart, per multiple sources familiar with conversations, though timing is...