US President Trump stated at the White House on the 1st that he is 'not satisfied' with Iran's latest negotiation proposal.
During an interview with the media at the White House that day, Trump said that the US and Iran are currently conducting negotiations mainly over the phone, and some progress has been made, but it is uncertain whether they will ultimately be able to achieve their goal.
Trump also confirmed to reporters that on April 30, he received a briefing from the US military's Central Command regarding military options against Iran. He said that military escalation and reaching an agreement are the 'options on the table,' but he prefers to reach an agreement.
According to Iranian media reports, Iran had already transferred the latest negotiation proposal to the United States via Pakistan on April 30.