Sen. Cory Booker, D-N.J., accused former National Security Advisor Mike Waltz of displaying "profound cowardice" at Waltz’s confirmation hearing to represent the U.S. at the U.N. Tuesday, amid questions about Waltz's role in the Signal group chat that Waltz’s team had set up to discuss strikes against the Houthis in March.Booker, who refused to ask Waltz any questions, said that Waltz failed to take accountability when other lawmakers on the Senate Foreign Relations Committee asked him about what has been called "Signalgate." While members of the Trump administration have said no classified in...

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