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The latest in a never-ending series.
But whoever gets to the final two, the support for Rory Stewart poses a serious question for the winner.
Far from painting Tory activists as irreconcilable, this poll shows how the right campaign could yet defeat Boris Johnson.
The International Development Secretary has secured the backing of another cabinet heavyweight.
Johnson's candidacy is well-placed, but he faces two challenges.
For the Liberal Democrats as a whole, the move is win, win, win.
The former foreign secretary's leadership hopes received another big boost today.
A journey into the Conservative grassroots, to find out what they really want.
Polling shows Conservative members who support Johnson are even more ideologically unrepresentative of voters than their counterparts.
But it could also confirm that Boris Johnson's gamble is right.
The strengths, weaknesses and ultimate limitations remain essentially unchanged.