A byelection will be held in Toronto-Danforth on Monday, March 19.
The riding was previously held by the late NDP leader Jack Layton, who died of cancer on Aug. 22.
On Jan. 9, the New Democratic Party selected Craig Scott, a human right lawyer and professor, as their candidate.
Andrew Keyes, a communications consultant who previously made an unsuccessful bid to win the federal CPC nomination for Oak Ridges-Markham in the 2007, is running for the Conservative Party of Canada.
The Liberal Party has yet to announce a candidate.
The Green Party selected its candidate Sunday, Feb. 5.
John Recker is the riding's candidate for the Libertarian Party, while Christopher Porter is running for the Canadian Action Party.
Prime Minister Stephen Harper issued a press release shortly after 1 p.m. Sunday, Feb. 5 originally setting the election for March 12. The following day, Feb. 6, a release moved the date to March 19