David Warburton, the Conservative MP for Somerton & Frome, sits in a dimly lit room with a whiskey on the rocks, his eyes dazzled and his chin resting on his fist. In the foreground sits on top of an overturned pan: four rows of cocaine. He allegedly sucked “line after line” of the drug at a young woman’s home in London in the early morning hours of February 1. He had met her through politics and allegedly insisted on coming, despite evidence that he was drunk. Hours earlier, Warburton, a 56-year-old married father of two and a former businessman, had asked the woman to order