1990 Oshawa federal by-election

A by-election was held in the federal riding of Oshawa in Ontario on August 13, 1990, following the resignation of Leader of the New Democratic Party Ed Broadbent.

The by-election was held on the same day as another by-election in Laurier—Sainte-Marie in Quebec. The seat was held for the NDP by Michael Breaugh.

In the 1993 federal election, Breaugh lost his seat to Liberal Ivan Grose like all NDP MPs in the province.

Results

Canadian federal by-election, 13 August 1990
Party	Candidate	Votes	%	±%
On Ed Broadbent's resignation, 2 January 1990
	New Democratic	Michael Breaugh	12,046	47.6	+3.3
	Liberal	Cathy O'Flynn	8,709	34.4	+13.9
	Progressive Conservative	Bill Longworth	1,627	6.4	-27.4
	Christian Heritage	Gerry Van Schepen	1,308	5.2
	Confederation of Regions	Garnet Chesebrough	1,024	4.0
	Green	David A.J. Hubbell	243	1.0
	Libertarian	George Dance	117	0.5	-0.6
	Social Credit	Ken Campbell	96	0.4
	Independent	Robert Bob Kirk	94	0.4
	Independent	John Turmel	50	0.2
Total valid votes			25,314	100.0

1988 result

1988 Canadian federal election
Party	Candidate	Votes	%	±%
	New Democratic	Ed Broadbent	18,410	44.3	+2.0
	Progressive Conservative	Nancy McLean	14,040	33.8	-5.0
	Liberal	Ed White	8,496	20.5	+2.4
	Libertarian	George S. Kozaroff	449	1.1	+0.5
	Commonwealth of Canada	Lucylle Boikoff	139	0.3	+0.2
Total valid votes			41,534	100.0