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.
More top news
Questions on Russia and Syria are sure to dominate Defence Secretary Michael Fallon's meeting with his US counterpart Ash Carter.
Smoking could kill two million Chinese in 2030 with the country facing a "growing epidemic of premature death from tobacco".
A great-great-great-grandmother has become an unlikely star at the age of 93 after her grandson shared a video of her dancing to rap music.