Margaret Thatcher wins the first ballot for leadership of Conservative party
Ted Heath resigns after Margaret Thatcher recives 130 votes to his 119. Thatcher in corridor towards flat, enters and is greeted by woman. Son
Mark kisses her on cheek. People drinking champagne. Thatcher with husband and son
faces media . Dennis kisses her on the cheek for the cameras. Interview with Mr Thatcher on wife's victory.