Gushing tributes from both sides of the House have been pouring in for David Cairns who died last night of pancreatitis. The Scottish Labour MP for Inverclyde was just 44. Guido was going to wait a day or two, but he must be going soft in his old age, as Sky News, keen to adhere to their tag line, have jumped the gun:

“Big, big test for Ed Miliband in the Inverclyde by-election – David Cairns had a 14,000 majority.”

SNP gain?