The Sunday Telegraph's ICM poll is a serious blow to David Cameron, not least because it coincides with the disclosure that Tony Lit, the Tory candidate in Ealing Southall, gave £4800 to Labour. The picture of Mr Lit standing next to a beaming Tony Blair will be very hard to recover from. On the national stage, Gordon's seven point lead over Dave would translate into a majority of 115 seats - a landslide victory ten years after New Labour's first. We are in uncharted waters now, and how Cameron responds will be the best test yet of his mettle. How to broaden his appeal without making the error of Hague and Howard of retreating into the Tory comfort zone and focusing on the core vote? Tricky.