The Obama administration took steps to withhold from lawmakers the details of a $400 million cash payout to Iran and continues to rebuke inquiries from Congress for information about how another $1.3 billion in taxpayer funds was awarded to the Islamic Republic, according to multiple conversations with congressional sources apprised of the matter.

U.S. officials familiar with the recent transfer of $400 million in hard currency to Iran withheld details of the exchange from Congress during briefings in classified and unclassified settings, the Washington Free Beacon has learned.

The disclosure threatens to complicate efforts by the administration to downplay new reportsdetailing how U.S. officials used an unmarked aircraft to transfer $400 million in “pallets of cash” to Iran on the same day it freed several U.S. hostages.

Lawmakers and others have claimed for months that the payment was part of a “ransom” aimed at securing the release of the hostages. The White House denies this claim and has said the payment was part of a settlement to resolve decades-old legal disputes with the Islamic Republic.

Nearly eight months after congressional officials demanded a formal accounting of this payment–which amounted to $1.7 billion in total–the administration is still declining to provide lawmakers with the full story, sparking outrage on Capitol Hill.

“It has been seven months since President Obama announced that he was giving the Islamic Republic of Iran almost $2 billion,” Rep. Mike Pompeo (R., Kan.), a member of the House Intelligence Committee, told the Free Beacon on Wednesday.  “And we are just now finding out damning details about how $400 million, which is less than half of the total, was sent to Iran using foreign aircraft and foreign currencies.”

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