When White House National Security Adviser Mike Waltz created a group chat using Signal to discuss planning for airstrikes on Iran-backed Houthi rebels in Yemen, it wasn’t the first time Trump administration officials had used the popular messaging app for communications with colleagues.
The encrypted messaging program has been popular in Trumpworld since long before President Donald Trump returned to the White House in January, according to sources familiar with the operations of Trump’s 2024 presidential campaign, his transition, and his first tumultuous months in the White House.