Boris Johnson is launching his Uxbridge campaign today with party workers.
London's mayor is with John Randall, the former MP he hopes to replace. When Boris arrived in Uxbridge, he announced: 'I need a haircut'.
Nearly 60 MPs, including the leader of the Conservative backbench 1922 Committee, are pressing for a speedy decision by the next government on whether a new runway should be built at Gatwick or Heathrow Airport.
Graham Brady told the Independent on Sunday: "It is critical we address the issue of airport infrastructure as soon as possible - we've clearly put off a decision for decades now.
"It's important we make sure there is at least one new runway built in South-east England to prevent us falling behind other countries in terms of trade."
The paper reports that concern is growing in the House of Commons that the main parties have not made a commitment to backing the final option selected by the Airports Commission led by Sir Howard Davies. The commission is due to report in the summer.
The outcome of this year's General Election is perhaps the most difficult to predict in history. But that's not the case in every constituency. In three quarters of seats in London the majorities are so large they appear out of reach. That doesn't mean they're worth disregarding.
In the second of our series of 10 constituencies to watch we went to Holborn & St Pancras, where Labour's large lead from 2010 looks unbeatable. But, the battle there brings together two key characters on the capital's political scene.
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Over the coming six weeks we'll be highlighting 10 key London seats to watch in the General Election.
We start in the constituency of Bermondsey and Old Southwark.
In 2010 the Lib Dems got almost half of the vote. But Labour are confident they can depose Simon Hughes - who's been the MP there for more than three decades.