London mayor Boris Johnson has said he will look for a seat to run for Parliament in 2015 "in all probability".
ITV News Deputy Political Editor Chris Ship is following developments.
NEW: Boris says "in all probability I will try to find somewhere to stand in 2015"
More top news
A minute's silence will be held across the UK at midday to remember the victims killed in the Tunisia beach attack a week ago.
Jim Carrey apologises after using a photo of an autistic boy to promote his claims vaccines contain harmful neurotoxins
Newly released files show a proposal to move the population of Hong Kong to Northern Ireland