WASHINGTON — US President Donald Trump has removed Mike Waltz from his post as national security adviser, and will nominate him as ambassador to the United Nations.In a post on social media, Trump thankedWASHINGTON — US President Donald Trump has removed Mike Waltz from his post as national security adviser, and will nominate him as ambassador to the United Nations.In a post on social media, Trump thanked
Trump ousts Waltz as national security adviser, nominates him for UN post
