Who is Mike Waltz? All about Trump's security adviser who took "full responsibility" for Signal group chat scandal and called Jeffrey Goldberg a 'loser'
Jeffrey Goldberg was accidentally added to a Signal group chat used by senior officials in Trump's administration to discuss ...
National security adviser Mike Waltz takes 'full responsibility' for putting together text group that leaked military plans
Updates and the latest news as Trump intelligence officials testify at a Senate hearing on worldwide threats and the ...