Poll tracker: Who's in front with 11 days to go?

The Conservatives and Labour are tied in the Press Association’s poll of polls.
With 11 days to go until the general election, both parties are on 33.2%. The last time the Tories and Labour were tied was on March 31.
Ukip are in third place on 13.9%, the Liberal Democrats are fourth on 8.4% and the Greens are fifth on 4.9%