Conservative Party Chairman Grant Shapps has said he was "surprised" at the Liberal Democrats dramatic shift on the so-called Bedroom Tax.
Shapps described the policy as "very reasonable" and questioned why the Lib Dems had not raised concerns earlier.
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Polls have closed across Europe and results from the UK are expected to be grim for the Tories and Labour.
Warmer and drier from Friday with temperature for many back up into the low 20s.
The magnitude 8 quake was felt as far away as neighbouring Colombia and Ecuador.