The problem, of course, is that his name was on the letter. When this was pointed out, he clarified that he had signed up for the principles rather than the demands. So, we had a Shadow Chancellor claiming he signs things he hasn't read – not the best approach to bring to the country's finances. But that is an insignificant error compared to the denial that he didn't know what the demand were since there was a photo of him proudly posing with the finished and printed letter.