The Labour MP for Tottenham said Britain could "stop this madness through a vote in Parliament".
The race to be Ed Miliband's successor has kicked off, albeit unofficially, with meetings between the key teams and recruitment already underway.
Even after the losses of last night, the Labour leader retains his conviction that his focus on inequality is right.
The fundamentals - the Tories' advantage on leadership and the economy - reasserted themselves.
Business Secretary is the biggest of the Lib Dem beasts to fall.
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?
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