The four men in the race for the leadership of the tory party, are- Ken Clarke, Liam Fox, David Davis and David Cameron.
For you BBfan members who vote tory, who would you like to see become tory leader?
Hopefuls set to face Tory women
Tory MPs will vote next Tuesday
The four Conservative leadership candidates are preparing to be grilled by MPs' wives and other Tory women at a hustings in the House of Commons.
David Cameron, David Davis, Ken Clarke and Liam Fox will have 15 minutes each before the 40-year-old Contact group.
The event takes place shortly after the official noon close of nominations.
Tory MPs vote next Tuesday with the last candidate dropping out. The top two in a second vote, on Thursday, then go to a run-off vote of party members.
With the first round of voting approaching the various candidates are stepping up their efforts to win backing.
Although Mr Cameron is the bookmakers' favourite, Mr Davis is thought to have a big lead among MPs, with 66 backing him.
Close race
Dr Fox's bid was boosted on Wednesday by news that about 15 right-wing Tory MPs could back him.
That would make it too close to call between him and Mr Cameron, who has won over two shadow ministers.
"The Cornerstone group would like to see Mr Clarke thrown out of the balloon" Edward Leigh MP
The Cornerstone Group of right-wing MPs discussed who to support at a meeting on Wednesday evening.
One of the group's leading MPs, Edward Leigh, said: "Twenty-one MPs turned up for the meeting.
"I think the majority of them will vote for Dr Fox, firstly because he appears to accept all the Cornerstone agenda and secondly because they would like to see Mr Clarke thrown out of the balloon."
But another MP from the group, Douglas Carswell, instead said he was backing Mr Cameron.
Drugs questions
Mr Carswell made his decision after watching the four candidates at the first hustings of the contest - attended by right-wing MPs from the 92 Group, the Cornerstone Group and the No Turning Back Group.
The event - with the contenders being questioned separately rather than going head to head - is the first of three similar events ahead of the first round of Tory MPs' votes.
CAMPAIGN TIMETABLE
Wednesday: Hustings in front of right-wing Tory MPs from the 92 Group, No Turning Back Group and Cornerstone Group
Thursday: Nominations close. Hustings for the Contact group of Tory spouses
Monday: Possible hustings for all Tory MPs
Tuesday: First round of voting by MPs
Thursday: Final round of voting by MPs
Early November: Tory members start voting on final two candidates
6 December: Result expected
One MP asked Mr Clarke - the first contender to appear - whether he had ever tried hard drugs.
The reaction against the question from other MPs was apparently so strong that it was not put to other candidates.
But it was most likely aimed at Mr Cameron, who has refused to say whether or not he smoked cannabis at university.
Mr Clarke initially said he did not think it right for candidates to be asked to answer questions of that sort about their private lives.
He then added: "If it is of any interest to you, I haven't taken cocaine."
Be realistic
Later, Mr Cameron was asked only what his policy on drugs would be.
He said he thought it vital to improve education and treatment in the battle against illegal drugs.
Pressed on his earlier support for downgrading cannabis from Class B to Class C, he argued it was important to ensure that drugs policy was "realistic".
But he suggested he might reconsider the move because the cannabis available now was much stronger.
BBC