PARIS (Reuters) – French President Emmanuel Macron’s lead in voting intention polls widened on Tuesday but his prime minister said a Macron win in Sunday’s presidential runoff vote was not guaranteed, as far-right challenger Marine Le Pen accused him of fear-mongering. Three polls for the second-round runoff put Macron at the highest level since before the first round, with an average score of 55.83%, up more than a point from Friday and more than three points from an average of five polls before the first round. Prime Minister Jean Castex, however, said it was too early to claim victory. “The…