Danny Alexander hails Lib Dems' record Liberal Democrats have won "real economic credibility" and should be proud of their achievements in the coalition Government, chief secretary to the Treasury Danny Alexander said today. In a defiant opening speech to the party's spring conference in Inverness, Mr Alexander underlined the Lib Dems' role in shaping UK economic policy. The Highlands MP urged the party faithful to ignore opponents, adding: "Be proud because we are delivering big changes that are making a real difference to the lives of people in every corner of the United Kingdom. Ignore our opponents. We have nothing to apologise for, and a record to shout about. Mr Alexander highlighted investment in broadband, efforts to save cross-border sleeper train services, a cut to fuel costs and changes to the income tax threshold. Looking to the next general election, he told the conference he wants to push ahead with a pledge to raise the tax bar further from £10,000 to £12,500.