Mike Waltz, President Donald Trump's nominee for U.S. ambassador to the United Nations, is facing questions from lawmakers Tuesday for the first time since he was ousted as national security adviser in the weeks after he mistakenly added a journalist to a private Signal chat used to discuss sensitive military plans .
The hearing before the Senate Foreign Relations Committee will provide lawmakers an opportunity to grill Waltz over revelations in March that he added The Atlantic editor-in-chief Jeffrey Goldberg to a private text chain on an unclassified messaging app that was used to discuss planning for strikes on Houthi militants in Yemen.
Waltz has spent the last several weeks meeting with Democrats and Republicans on the Foreign Affairs committee. If confirmed, Waltz would head to the U.N. at a moment of great change, as the world body is reeling from Trump's decision to slash foreign assistance.
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The stakes of Waltz's UN hearing