Missouri Sen. Claire McCaskill’s husband used the U.S. Senate Dining Room to cut business deals selling tax credits tied to stimulus money, a whistle-blowing executive inside his company alleged on an audio recording exclusively obtained by The Daily Caller.

“The thing that irritated me about this was he [McCaskill’s husband Joseph Shepard] entertained these outside investors in the Senate Dining Room,” the whistle-blower said. “That’s where he closed the deal.”

The whistle-blower, Craig Woods, was a longtime high-ranking official within Shepard’s business empire, serving first as chief financial officer and then as vice president and chief underwriter for Missouri Equity Investors LLC and JA Shepard Companies.