A man shelters under a 'House of Lords' embossed umbrella near Britain's Houses of Parliament in central London February 2, 2010. Britain's Prime Minister Gordon Brown launched an electoral reform plan on Tuesday that he said would reinvigorate democracy, but critics called it a gimmick by a leader heading for defeat at the ballot box. In what was billed as a major speech on constitutional reform just weeks before an election Labour is expected to lose, he announced plans for a referendum on whether to change the way MPs are elected. REUTERS/Toby Melville (BRITAIN - Tags: POLITICS ELECTIONS)