Laura Kuenssberg presents through-the-night results coverage following the elections across England, Scotland and Wales. Reeta Chakrabarti will crunch the numbers and Professor Sir John Curtice, political scientist and professor of politics at the University of Strathclyde, will be on hand to offer his voting knowledge and insight. BBC regional political editors will be at the most important counts, and representatives of the main parties will give their reaction to the emerging political landscape