Lanny Davis, former White House special counsel under President Bill Clinton, joined Chris Wallace on "Fox News Sunday" to react to the "Clinton Cash" controversy in an exclusive interview.

When Wallace asked about data that shows that Bill Clinton's speaking fees went up after 2009 - when Hillary Clinton became Secretary of State - Davis replied that the former president "religiously" had a wall between himself and his wife during her tenure in office.

Wallace pointed out that Peter Schweizer's book, "Clinton Cash," shows a major violation, a failure to disclose that Ian Telfer, who was the chairman of a uranium company that the Russians wanted to buy, gave $2.35 million dollars to the Clinton Foundation through his family's Fernwood Foundation. Yet that contribution, $2.35 million, was never reported.

"You use the word 'major.' You're entitled to that adjective," Davis said. "$2.35 million out of $2 billion is not major, even by any definition."

Wallace agreed to disagree and also asked if it's possible that some of the 30,000 emails that Hillary Clinton deleted from her private email server might have been about large donations or speech fees.

Davis said that anything is possible, but argued that this is "unfair smoke blown about the Clintons" and that Schweizer's book is missing all the good work they and the Clinton Foundation have done through the years.

Wallace countered that Clinton herself was the one who caused this trouble by combining her government and private email accounts.

Watch more from the exclusive "Fox News Sunday" interview above.

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