WASHINGTON -- Republican presidential contender Rudy Giuliani says if elected, he'd be open to his wife attending Cabinet meetings on issues in which she's interested. In an interview with Barbara Walters to air Friday on ABC News' "20/20," the former New York city mayor and his wife, Judith Nathan Giuliani, answered questions about the six marriages between them and whether she was the "other woman" who caused the breakup of his second marriage to TV personality Donna Hanover. Rudy Giuliani, the current front-runner in the 2008 GOP race, discussed what role his wife would play if he wins the White...