Charles K. Ortel, a former Wall Street banker and investor, blew the whistle on General Electric in 2007-2008, after tearing its financial reports apart and finding the conglomerate had been lying to its investors, fraudulently overvaluing its stock by hundreds of millions of dollars.

Fifteen months ago, Ortel began looking forensically at the Bill, Hillary & Chelsea Clinton Foundation—a politically connected philanthropic conglomerate with multiple related entities, global interests and highly questionable fundraising practices. Like GE, he said, its financials were telling as very different stories from those it “officially” reported.

In an exclusive, no-holds-barred interview, Ortel again blows the whistle. What he has discovered about the Clintons’ foundation is that it is “a complete fraud,” he alleges.