A little over three months into his role as President Donald Trump's national security adviser, Mike Waltz found himself at the center of a controversy dubbed Signalgate.
The former Republican congressman from Florida is leaving his White House position amidst fallout from using the Signal messaging app to discuss sensitive military information.
While details of his departure are still unfolding, Waltz's involvement in the Signal chat has overshadowed his tenure since it was exposed in March.
The Signal chat became public when reporter Jeffrey Goldberg was accidentally added to the conversation, revealing discussions about planned U.S. airstrikes in Yemen.
Goldberg's report included specifics about the airstrikes, leading to calls for Waltz's resignation due to security concerns.
Waltz took responsibility for the incident, stating he "built the group" and vowed to investigate further.
Despite public defense from Trump and denials of sharing classified information, the scandal has cast a shadow over Waltz's career.
Prior to his congressional role, Waltz held positions in defense policy and counterterrorism in the Bush Administration.
Contributing: Saman Shafiq, Bart Jansen, Cybele Mayes-Osterman, and Joey Garrison.
Kathryn Palmer is a trending news reporter for USA TODAY. Contact her at kapalmer@usatoday.com and on Twitter @KathrynPlmr.