Appaz based on what Robert Peston said on ITV News at 10.45, Young phoned a Brexit source and had it confirmed.
Sky Press Preview's repeated at 1.30am if you're interested...I don't work for Sky, honest, only I am addicted to its Press Preview, and am also a total news junkie. Young is saying Boris will wait till after the Marr Show to declare, although may also have an exclusivity deal with the Telegraph, for whom he writes a highly-paid column. Anyhoo, we live in interesting times, don't we? Consequences for Tory leadership contest...