It was prototypical Nigel Farage. A cryptic announcement that a statement is about to be made, a wholesale hijacking of the news agenda hinting at a “will he won’t he?” state of affairs, followed by a blistering attack on “the establishment” (or, at least, Farage’s conception of the establishment), and a big finish – he is resigning as MP for Clacton, therefore triggering a by-election – in which he will stand once more (though it appears the other main parties will not). This news does rather