U.S. President Donald Trumpon Tuesday restored his "maximum pressure" campaign on Iran that includes efforts to drive its oil exports down to zero in order to stop Tehran from obtaining a nuclear weapon.

US President Donald Trump took an executive action Tuesday to restore the so-called "maximum pressure" campaign on Iran aimed at preventing the Islamic Republic from obtaining nuclear weapon. Speaking to reporters in the Oval Office as he was signing the document -- of which the exact content and form the White House has yet to make public -- Trump said he took the action somewhat hesitantly,

President Donald Trump issued an executive order reinstating a "maximum pressure" campaign against Iran, targeting Tehran's oil exports.

President Donald Trump signed a directive that aims to ramp up economic pressure on Iran, following through on pledges to reverse what he has cast as a lax sanctions enforcement regime under his White House predecessor.