Labour has posted a 12-point opinion poll lead over the Tories - its widest margin of advantage in a ComRes survey for more than seven years.
The Opposition gained two points to 43% on a month ago and the Conservatives dropped two to 31%, in the poll conducted for the Independent on Sunday and Sunday Mirror.
It showed the Liberal Democrats static on 10% and Ukip down one on 8%.
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A soaking then sunshine this weekend