Exit stage right - UKIP leader Farage announces surprise departure

By Kylie MacLellan and Elizabeth Piper LONDON (Reuters) - The leader of the insurgent right-wing UK Independence Party said on Monday he was stepping down after realising his ambition to win a vote for Britain to leave the EU, the latest twist in a dramatic reshaping of the nation's politics. The departure of brash former commodities trader Nigel Farage would sideline one of the most outspoken and effective anti-EU campaigners from the debate about how to sever Britain's ties with the other 27 c