The appearance of George Galloway on the ballot paper in Poplar and Limehouse has opened up the race in what was once a safe Labour seat.
The Respect MP has moved from his former constituency, Bethnal Green and Bow, to fight a seat, with new boundaries, that encompasses the gleaming wealth of the banks in Canary Wharf and some of Britain's poorest council estates.
Labour MP Jim Fitzpatrick is the incumbent (and still the favourite), but with Galloway potentially splitting the vote for the left, the Conservative candidate Tim Archer is confident he can claim the seat for the Tories for the first time ever.
Meanwhile, back in Westminster, Andrew Sparrow has been following the national campaign, where Nick Clegg has been talking about who he would side with in the event of a hung parliament.
And in the highly marginal seat of Perthshire and North Perthshire, Severin Carrell has been finding out whether the Conservatives can pinch their top Scottish target seat from the Scottish National party.
