The wife of the late U.S. Sen. Edward M. Kennedy — a Democratic favorite to run against Republican U.S. Sen. Scott Brown and reclaim the seat her husband held —has ruled herself out of the race, leaving the Democratic primary field wide open. Victoria Reggie Kennedy had been heavily courted by Democrats to run for the seat, but she told New England Cable News in an interview aired last night that it’s “not for me.” “No, I’ve consistently said, ‘Not for me. Not for me,’ ” Kennedy told the station. “I’m very flattered, but you know . . . really,...