Conservative MP Eve Adams, who has been in a contentious nomination battle in the new Toronto-area riding of Oakville North-Burlington, says she is dropping out for health reasons.
Adams says in an emailed statement that she suffered a concussion last February and has not fully recovered.
She says she continued working on the campaign but has decided it's time to take her health seriously.
Adams currently represents the riding of Mississauga-Brampton South.
Adams' team had been accused of paying for the memberships of supporters, alleged donations that are illegal under the Elections Act. Adams in turn has accused rival Natalia Lishchyna of improperly using data research firms to phone members at home.
The nomination contest was on hold pending an internal investigation.
Adams fiance, Dimitri Soudas, had to resign as executive director of the Conservative party when it was perceived he was using his position to help Adams.