Witkoff Confirms Trump’s Red Lines for Iran as US Military Buildup Expands

The special envoy said zero uranium enrichment will remain a red line for the Trump administration until the Iranian regime can ‘prove to us they can behave.’

Sailors preparing a Boeing EA-18G Growler on the flight deck of the aircraft carrier USS Abraham Lincoln in the Indian Ocean on Jan. 21, 2026. Mass Communication Specialist Seaman Daniel Kimmelman/U.S. Navy via AP

The Trump administration is wondering why Iran has not yet yielded to the United States and agreed to end its nuclear program amid Washington’s recent large-scale military buildup in the Middle East, U.S. special envoy Steve Witkoff said on Feb. 21.

Speaking with U.S. President Donald Trump’s daughter-in-law on Fox News’ “My View with Lara Trump,” Witkoff said the president has “red lines” in negotiations with Iran, particularly zero uranium enrichment.