PORTREE, SCOTLAND - MAY 02: First Minister and leader of the SNP Nicola Sturgeon arrives in Portree as she travels by helicopter as she campaigns on May 2, 2015 in Portree, Scotland. Continuing her helicopter tour of Scotland, First Minister Nicola Sturgeon said that Ed Miliband's revelation that he is prepared to let the Tories back into office rather than work with the SNP has shown that it is only the SNP that can be trusted to deliver progressive politics. (Photo by Jeff J Mitchell/Getty Images)
