After initial reporting that Mike Waltz is no longer serving as national security adviser, President Donald Trump announced on Truth Social that he’s nominating Waltz to be the next U.S. ambassador to the United Nations. Democratic lawmakers say the administration should have fired Defense Secretary Pete Hegseth. However, Vice President JD Vance said Waltz is being promoted, and that Hegseth’s job is safe. Secretary of State Marco Rubio will serve as interim national security adviser until the administration chooses a replacement, and Waltz must still go through the Senate confirmation process before taking on the new role as ambassador to the U.N….