 Rob Watson is our UK politics correspondent. He spent the past few weeks herring around the country before heading back to Westminster for the big day tomorrow. All the campaigning of the past few weeks hadn't really shifted the polls, had it? But no, not only has the campaign not really shifted the polls, but actually if you looked at it about a year ago, it was exactly as it is now. In other words, with the main opposition Labour Party having a pretty substantial lead over the Conservatives.