House Speaker Paul Ryan on Wednesday demanded a full explanation from the Obama administration on how it decided to fly $400 million in cash to Iran in the midst of a hostage crisis earlier this year.

“If true, this report confirms our longstanding suspicion that the administration paid a ransom in exchange for Americans unjustly detained in Iran,” said Ryan, R-Wis. “It would also mark another chapter in the ongoing saga of misleading the American people to sell this dangerous nuclear deal. Yet again, the public deserves an explanation of the lengths this administration went to in order to accommodate the world’s leading state sponsor of terrorism.”