Half of voters in 'Boris constituency' would vote for him

More than half of voters in a London constituency which is seen as a target for Boris Johnson would vote for him if he chose to stand there in 2015, according to a poll.

Boris Johnson finally confirmed his desire to return to the Commons. Credit: Stefan Rousseau/PA Wire

A survey conducted in Uxbridge and South Ruislip after the London Mayor finally confirmed his desire to return to the Commons showed he could significantly boost Tory support.

But a third of those who backed him also said he should quit City Hall if elected - despite Mr Johnson insisting he could see out the final year of his term.

The poll of 1,000 people in the seat being vacated by former deputy chief whip John Randall was carried out for Tory donor and former party vice chairman Lord Ashcroft.