Above is the Guy News rolling poll of polls from the last seven days.

This week last year saw the biggest move in a party’s rating ever recorded by YouGov.  On April 4th, 2009 Labour were on 34%, the following YouGov poll on April 23rd had them down 7% to 27% with the Tory lead soaring to 18%.  It was the week when Smeargate revealed to voters how Brown’s Downing Street cabal really worked and Labour’s electoral hopes of a post-G20 bounce-back in the polls were finally killed.

It was, in the words of one grateful senior Tory strategist at the time, “a game-changer”…