WASHINGTON - Former Minnesota Sen. Eugene J. McCarthy, whose insurgent campaign toppled a sitting president in 1968 and forced the Democratic Party to take seriously his message against the Vietnam War, died Saturday. He was 89. McCarthy died in his sleep at assisted living home in the Georgetown neighborhood where he had lived for the past few years, said his son, Michael. Eugene McCarthy challenged President Lyndon B. Johnson for the 1968 Democratic nomination during growing debate over the Vietnam War. The challenge led to Johnson's withdrawal from the race. The former college professor, who ran for president five times...