John Horgan, Christy Clark, and Andrew Weaver are all vying to lead their parties to provincial election victory. (Photo: Twitter/The Canadian Press)

A day before the start of a B.C. election campaign, a new poll shows B.C. Liberal Premier Christy Clark's popularity is waning.

According to data from Insights West, Clark has dropped six points since February to 30 per cent — with B.C. Green Party Leader Andrew Weaver surpassing her with a six-point jump to 35 per cent support.

Meanwhile, NDP Opposition Leader John Horgan maintains his lead in approval ratings, even though he dipped two points during the same time period to 37 per cent.

Despite Weaver’s momentum, Clark is still viewed as the “preferred choice” when it comes to job creation and the economy, said Mario Canseco, vice-president of public affairs for Insights West.

“Premier Clark is still regarded as a superior economic manager, while opposition leader Horgan is connecting on themes like housing, education and care,” Canseco said in a release on Monday.

On the same day, Clark released the B.C. Liberals' platform focused on tax cuts, while Horgan says his party would eliminate tolls on two bridges linking the suburbs to Vancouver if the NDP wins the May 9 election.