WASHINGTON -- Donald Trump knew a man he named as a senior business adviser in 2010 had been convicted in a major Mafia-linked stock fraud scheme, according to Associated Press interviews and a review of court records. Trump had worked with Felix Sater previously during the man's stint as an executive at Bayrock Group LLC, a real estate development firm that partnered with Trump on numerous projects after renting office space from the Trump Organization. But Sater's past was not widely known at the time because he was working as a government cooperator on mob cases and the judge overseeing...