TORONTO (Reuters) - The Conservatives' lead over the Liberals narrowed in a Canadian opinion poll released on Tuesday, ahead of the May 2 federal election.
The Nanos Research tracking poll of results over three days of surveys put support for the Conservatives at 39.8 percent, down from 42.3 percent in Monday's survey. Support for the Liberals rose to 30.2 percent from 28.4 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.
The Conservatives had a minority in the previous Canadian 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.
The daily tracking figures are based on a three-day rolling sample of 990 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