WASHINGTON (AP) -- The regulator overseeing the investigation of Jon Corzine's collapsed securities firm, MF Global, gave $10,000 to the New Jersey Democratic Party in 2005 as Corzine ran for governor of that state. Gary Gensler, chairman of the Commodity Futures Trading Commission, and Corzine had worked together for 18 years at Goldman Sachs Group Inc. and later collaborated to pass a law to combat corporate fraud. Election records show Gensler gave the money in August 2005. Corzine, a Democrat, was elected governor later that year. MF Global filed for bankruptcy protection on Monday. Gensler and other regulators are trying...