 In the Clydesdale constituency, the Liberal Democrat candidate John Paton-Day failed to lodge his papers in time for the nomination deadline, leaving the constituency as the only one in Scotland with no Liberal Democrat candidate.On 17 April, the Scottish Liberal Democrat leader Tavish Scott described himself as 'uncomfortable' with his Scottish party being 'related' to the Conservatives due to the coalition at Westminster.A televised debate between the four main party leaders was shown on STV on 29 March, with SNP leader Alex Salmond and Conservative leader Annabel Goldie identified as the strongest performers.