In the letter, they cite "'extremely troubling' press reports suggesting" that Calk "may have made loans of up to $16 million" to Manafort "in exchange for alleged promises to name him Secretary of the Army."
The congressmen also asked the Pentagon to provide a briefing and produce documents related to Calk by March 13th.
Neither Calk nor officials from his bank, The Federal Savings Bank, responded to I-Team requests for comment for this report.
CLICK HERE to read the letter.
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