Democrats on Tuesday accused the Trump administration of stonewalling Congress by withholding vital information about the U.S. strike on Iran, following the abrupt postponement of two scheduled briefings on the escalating crisis in the Middle East.

The House and Senate were scheduled to receive separate all-member briefings Tuesday afternoon from senior Trump administration officials, including Director of National Intelligence Tulsi Gabbard, CIA Director John Ratcliffe, and Joint Chiefs Chairman Dan “Razin” Caine.