TORONTO (Reuters) - The Conservatives widened its lead against the opposition Liberals in an opinion poll released on Monday.
The Nanos Research tracking poll of results over three days of surveys put support for the Conservatives at 42.3 percent, up from 40.7 percent in Sunday's survey. Support for the Liberals slipped to 28.4 percent from 29.4 percent.
Under Canada's electoral system, a party needs around 40 percent of the vote to win a majority of the 308 seats in the House of Commons in the May 2 federal election.
The Conservatives have a minority in Parliament and need support from at least one other party to stay in power.
The daily tracking figures are based on a three-day rolling sample of 986 interviews, with a margin of error of 3.1 percent, plus or minus, 19 times out of 20.
Reporting by Solarina Ho; editing by Janet Guttsman