WASHINGTON -- When he was speaker of the House of Representatives, Tip O'Neill used to say that all politics is local. But in Georgia, a second member of Congress faces possible defeat over an international issue. Rep. Cynthia McKinney, an outspoken supporter of Arab causes, is in a tight Democratic primary battle against former state judge Denise Majette. Pro-Israel contributions from outside Georgia have flowed to Majette, while the bulk of McKinney's contributions came from donors who have given to pro-Arab causes. It's unusual for a challenger to outraise an incumbent, yet Majette has raised $1.2 million, almost double McKinney's...