Election earthquake has opened chasms David Cameron will struggle to bridge

With Labour and Lib Dems decimated, coming battles over two unions – the EU and the UK – have taken on a dramatically different complexionThose who stayed awake saw the earthquake for themselves. Those that slept through the night arose on Friday to glimpse a landscape changed utterly. Its contours were redrawn, its borders painted in newly vivid colours. And, most spectacularly, some of the most familiar human landmarks were suddenly gone, toppled like statues in a street revolution. By lun