Progress has been made in negotiations between the U.S. and Iran in the past 24 hours, though reaching a ceasefire deal by President Trump's 8 PM ET deadline still appears unlikely, according to multiple U.S. and Israeli officials. A U.S. official said White House thinking has shifted from "can we get there?" to "can we get there by 8 o'clock tonight?"

Trump has threatened to destroy Iran's bridges, power plants, and other critical infrastructure including oil and water facilities if Iran does not agree to open the Strait of Hormuz. The president wrote on Truth Social Tuesday morning that "a whole civilization will die tonight, never to be brought back again." Iran has responded by threatening retaliation against energy and water facilities in Gulf states.