The fight over Waltz’s survival shows the administration is obsessed with reporters more than national security protocols.
In an interview with Fox News, the national security advisor denied knowing how the Atlantic’s Jeffrey Goldberg joined the thread.
Every international trip the Pentagon chief has taken has been clouded by controversy.
“Both sides are using this scandal to advance their agenda,” said one Republican Senate staffer.
The deployment of Stryker vehicles with surveillance capabilities will mark a new phase in the Trump administration’s effort to use the military to detain migrants.
An annual intelligence assessment of global threats also questions both countries’ willingness to reach a quick settlement to the war.
The Defense secretary attacked the journalist who was mistakenly added to a Signal chat with national security officials, but did not dispute its existence.
“You can’t have recklessness as the national security adviser,” one official said.
“That’s why we have other devices,” a former Defense official said.
The U.S., once firmly aligned with Ukraine, has been trying to broker a deal to end the war started by the Kremlin’s invasion.