Colin Craig has sent a personal letter to Conservative Party members to apologise about his behaviour and gauge whether he has the support to return as leader.
In the leaked letter, signed by Mr Craig and his wife Helen, the former party leader said he was "not a perfect man" and asked members for forgiveness.
It was sent to most of the party's 10,000 members two weeks ago and asked them to respond about whether Mr Craig should "continue" or "give it away".
The letter began by dismissing allegations that Mr Craig had sexually harassed former press secretary Rachael MacGregor.
"We assure you that this is not the case and allegations of this nature are false and have been withdrawn.