Albany, New York (AP) - Las Vegas casino developer Steve Wynn has joined a group seeking to run thoroughbred racing in New York. Wynn, CEO of Wynn Resorts, joined the Excelsior Racing Associates that a week ago lost a founder, Steve Swindal. Swindal, the son-in-law of New York Yankees boss George Steinbrenner, dropped out of Excelsior after his wife filed for divorce.