The Air Force chief of staff pushes back during a visit to Colombia.
If Tehran pulls out of the 2015 deal, it could have a weapon in a matter of months.
Departures come amid speculation that Defense Secretary Mattis is on his way out.
Internal memos reflect the growing influence of conservative Christians in the Trump administration.
The revamp comes as officials debate how to counter Russian and Chinese influence campaigns.
She fashioned herself a human rights champion but routinely clashed with potential allies over the Human Rights Council.
The president appears to be tired of Pentagon officials slow rolling his orders.
Leaked emails and behind-the-scenes battles show how the administration, after failing to slash congressional aid, used bureaucratic levers to stifle money flows.
The diversity problem predates this administration, but some State Department officials fear it’s getting worse.
The increase reflects a shift in focus away from counterterrorism and toward possible conflict with China or Russia.
A top Middle East diplomat’s confirmation has been blocked in the Senate as new Syria strikes loom.
Mari Stull, a wine blogger-turned-Trump appointee, is the subject of two investigations into allegations of reprisals and bullying at the State Department.