The federal NDP leadership race is expected to grow by one today.
Ontario's deputy New Democratic leader, Jagmeet Singh, is expected to launch his campaign tonight at a rally in Brampton, near Toronto.
Singh was a criminal defence lawyer before entering politics in 2011, and is also a mixed martial arts fighter.
His entry would bring to five the number of official candidates in the race, alongside MP's Peter Julian, Charlie Angus, Niki Ashton and Guy Caron