Donald Trump is due to make an unspecified announcement from the Oval Office at 2pm on Monday, according to his public schedule, which gives no indication of its subject. A possible restriction on diesel exports has drawn attention as US fuel prices rise amid the Iran war, while his recent contact with an artificial intelligence executive has prompted speculation that the announcement could concern AI.

US diesel has reached a reported record of $6.52 a gallon, and Trump said on Sunday he was seriously considering an export ban before the midterm elections. Energy Secretary Chris Wright has discussed restrictions, and Politico reported that the administration was preparing a 90-day ban. Trump also dined with Anthropic chief executive Dario Amodei on Sunday and is due to meet House Speaker Mike Johnson and technology executives about AI on Tuesday.