Boris Johnson said today he could not go on "endlessly dodging" questions about his future.
But the Mayor of London played down his chances of success, saying it was "highly likely" he would fail to find a suitable constituency in which to run.
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The Queen opened this year's Commonwealth summit with the message that "a nation's size is no measure of the moral strength of its people".
French President Francois Hollande today led a memorial service to the 130 victims of the Paris attacks in the city.
Cameron announces Commonwealth nations intention to set up specialist unit to target extremist "scourge" fuelling international terrorism.