LETTER: PM should activate Article 50 now

I think it is totally unacceptable for a Prime Minister to tell millions of British people who watched him on national television say that if he lost the '˜'Remain' vote he would activate or implement article 50 of the Lisbon Treaty immediately. '¨It is the right of every British citizen to demand he does so with immediate effect, or does he want to be branded a liar for the rest of his political career?