Boris Johnson has said it was "largely" David Cameron's idea for him to run as an MP at next year's general election.
The Mayor of London told ITV News Deputy Political Editor Chris Ship that he made the announcement today because people were "fed up" of "pussyfooting around" about his future.
Discussing the Prime Minister's views, Mr Johnson claimed it was "largely at his instigation" that he had decided to try to return to Parliament.
Boris's decision to stand in 2015 is unalloyed good news. Blue touch paper is lit.
Tory MPs have strongly welcomed the news that Boris Johnson plans to run for Parliament in next year's general election.
Former Welsh Secretary David Jones called the announcement "unalloyed good news", while Enfield MP Nick de Bois said Mr Johnson could potentially bring high level executive experience to the Tory team.
In the event of a Cons government after 2015 @mayoroflondon election as MP would bring amongst highest level of executive experience to gov
Backbencher Anne Marie Morris claimed the response to the move from other parties showed they were "rattled" by the idea of Mr Johnson returning to Parliament.
Labour & Lib Dem reaction to Boris' announcement merely confirms that he has made the right decision #Rattled
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.
Labour's Shadow Minister for London, Sadiq Khan, claims Boris Johnson's announcement that he will try to run for Parliament shows David Cameron is "weak".
"Boris Johnson's announcement reveals how weak David Cameron is and how out of touch the Tories remain," he said.
"Rather than focusing on helping the millions of Britons suffering from the cost-of-living crisis, the Tories are increasingly turning inwards, focused on leadership battles to come, with David Cameron powerless to do anything about it."
Boris Johnson did not tell David Cameron about his announcement that he planned to run for Parliament in 2015, the London Mayor has revealed.
ITV News Deputy Political Editor Chris Ship is following developments.
Boris didn't tell Dave that he was going to announce this today. He's just been asked as much by @cathynewman
The Conservative Party Chairman Grant Shapps has said that he is "delighted" that London Mayor Boris Johnson hopes to return to Parliament as an MP.
David Cameron has tweeted that it is "great news" that one of his "star players" Boris Johnson plans to run for Parliament in 2015.
Great news that Boris plans to stand at next year's general election - I've always said I want my star players on the pitch.
There has been both praise and criticism over news London Mayor Boris Johnson will "probably" run to be an MP in the 2015 General Election.
Interesting and excellent news that @mayoroflondon wants to rejoin the Commons and stand as an MP next year!
Boris Johnson says that although he is likely to run for Parliament in next year's general election, he still intends to serve out his term as Mayor of London until its end in 2016.
Mr Johnson made the remarks at a speech in London this morning where he said he would "in all probability" try to run for Parliament next year.