Mike Waltz Out As Trump's NSA, Appointed As UN Envoy

Donald Trump’s national security adviser, Mike Waltz will be leaving his posts after losing confidence of U.S. administration officials in the wake of the 'Signalgate' controversy. Waltz has now been appointed as the U.S. envoy to UN. Secretary of State Marco Rubio has been appointed as the interim NSA. NDTV World's Kate Fisher sheds light on the story from Washington, D.C.

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