Tonight’s tactical battle
If seven days ago, anyone had suggested that the first debate would propel Nick Clegg and the Lib Dems to the top of the polls we’d all have thought that their lunch had gone on rather too long. But that’s what happened. Tonight, the questions are whether Gordon Brown reprises his ‘I agree with Nick’ routine or tries to check Clegg’s momentum and whether Cameron can turn in the kind of performance that begins to turn things round for him. Cameron shouldn’t be angry tonight. But he does need to bracket Brown and Clegg together at every opportunity. When three people are debating, the person who does the best