"The No campaign is in complete and utter disarray, and they are making this farce up as they go along.
"Together, David Cameron, Ed Miliband and Nick Clegg are the most distrusted Westminster politicians ever - and their collective presence in Scotland will be another massive boost for the Yes campaign.
"In trust ratings, David Cameron is minus 50 in Scotland, Ed Miliband is minus 44 - and Nick Clegg is off the the scale at minus 59. They are minus more than 150 together.
"The message of this extraordinary, last minute reaction is that the Westminster elite are in a state of absolute panic as the ground in Scotland shifts under their feet.
"David Cameron refused to take part in a debate in Scotland, and reneged even on a pledge to go into an STV studio to talk to undecided voters.
"The No campaign think that they are losing this campaign - and these hugely distrusted Westminster leaders trooping up to Scotland is only going to boost that process. It is also a commentary on the farcical event of their three Scottish representatives today, who had barely finished their press conference when it was obviously judged to be completely ineffective.
"The No campaign are making blunder after blunder, but this is by far the biggest yet.
"While No continue to get it badly wrong, Yes will continue with a campaign that is energising Scotland and galvanising support the length and breadth of the country. We need to vote YES to put Scotland's future in Scotland's hands - not the hands of a discredited, distrusted Westminster establishment."