Cutting the number of MPs will also lose independent-minded backbenchers.
Party close to admitting defeat as it says the Tories "will have huge task uniting country" after SNP surge.
Conservatives forecast to be just 10 seats short of a majority as Labour fall to 239 seats and Lib Dems collapse to 10.
The scenarios that will determine whether Cameron or Miliband is PM.
Labour could win 45 of London's 73 seats
Both Labour and the Tories can boast of moving the centre ground in their favour. But it is perhaps Ukip that has had the greatest influence.
Last week, panic spread through the Labour Party as it had its own "Wobbly Thursday". So is the party underperforming in the marginals? Or is it just Labour's inferiority complex at work?
Mathematically, Ed Miliband remains the most likely post-election PM. But we think there are four ways David Cameron could keep power.
Former Labour leader warns that the public may behave differently in "the privacy of the ballot booth".
As alternatives to a formal coalition are being considered, we outline what a confidence and supply arrangement entails.
If no one wins on 7 May and Britain returns a hung parliament, could there be a snap second election? Here’s why it’s unlikely.
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