The spring before his wife began her White House campaign, former President Bill Clinton earned $700,000 for his foundation by selling stock that he had been given from an Internet search company that was co-founded by a convicted felon and backed by the Chinese government, public records show. Mr. Clinton had gotten the nonpublicly traded stock from Accoona Corp. back in 2004 as a gift for giving a speech at a company event. He landed the windfall by selling the 200,000 shares to an undisclosed buyer in May 2006, commanding $3.50 a share at a time when the company was...