Peter Oborne pulled back the curtain showing us a little vignette of the political class on Marr’s show this morning. In the midst of a paper review he deliberately blurted out that Alan Duncan had just a few minutes earlier button-holed Marr in the green room, lobbying him not to ask questions about donations from a dodgy oil trader, citing legal issues. Marr look panicked and said in a revelatory moment “we don’t discuss what is said in the green room”. Actually the political class don’t like to discuss it in front of the voters at all…