TORONTO (Reuters) - An opinion poll released on Thursday had the Conservatives maintaining a 9-point lead over the Liberals.
The Nanos Research tracking poll of results over three days of surveys put support for the Conservatives at 39.6 percent, down slightly from 39.7 percent in Tuesday's survey. Support for the Liberals grew to 30.4 percent from 29.9 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.
The Conservatives had a minority in Parliament and needed support from at least one other party to stay in power. The government was defeated in a nonconfidence motion on March 25 and the federal election is scheduled for May 2.
The daily tracking figures are based on a three-day rolling sample of 989 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