“Last year a book, “Clinton Cash” by Peter Schweizer, revealed that in 2013, Mr. Rodham was added to the advisory board of a company that owns a gold mine in Haiti. Both he and the company’s chief executive told The Washington Post they had been introduced at a meeting of the Clinton Global Initiative, an arm of the Clinton Foundation. Officials at the foundation said they did not play a part in Mr. Rodham’s joining the mining company.”