Liberal Democrats Party leader Nick Cleg

Liberal Democrats Party leader Nick Clegg makes a speech on foreign affairs at the Royal Institute of International Affairs at Chatham House, in central London, on March 10, 2010. Many Britons have long seen backing the Liberal Democrats, the country's centre-left third party, as a wasted vote -- but they could end up kingmakers after this year's knife-edge general election. While the party boasts assets like Vince Cable, the finance spokesman who is arguably Britain's most popular politician and who once nicknamed Prime Minister Gordon Brown "Mr Bean", its poll ratings are only around 20 percent. AFP PHOTO/Carl Court (Photo credit should read Carl Court/AFP via Getty Images)