The Carbon tax has been rejected by some provinces but the federal government is still moving ahead with it and they have the constitutional right to do.
https://www.theguardian.com/world/2019/jan/02/justin-trudeau...
> Doug Ford, Ontario’s premier, has repeatedly called carbon pricing “the worst tax ever” and at least five provinces have banded together to fight the tax in the courts, a battle legal experts believe they will lose.
> Along with their provincial counterparts, the federal Conservatives have pledged to repeal any carbon taxes, with Scheer dismissing the policy as an “election gimmick”. This fight comes amid reports that Canada is not on pace to meet its 2030 climate goals.
https://en.wikipedia.org/wiki/Carbon_tax
> In the 2008 Canadian federal election, a carbon tax proposed by Liberal Party leader Stéphane Dion, known as the Green Shift, became a central issue in the campaign. It would have been revenue-neutral, with increased taxation on carbon being balanced by tax cuts for individual citizens. However, it proved to be unpopular and contributed to the defeat of Liberal Party with its worst share of the popular vote since Confederation.
https://insideclimatenews.org/news/09112016/washington-state...
> Washington State Voters Reject Nation's First Carbon Tax
> The measure was unpopular with social justice groups and divided environmental activists, many arguing it did not go far enough in promoting clean energy.
> Among those who decided not to support the carbon tax were Sierra Club, the Washington Environmental Council, the Union of Concerned Scientists, Climate Solutions, and 350Seattle.org.
https://crosscut.com/2018/11/washington-voters-reject-carbon...
> Washington voters reject carbon fees for second time