Court documents filed with Alberta's Court of Queen's Bench say B.C.'s Attorney General was bringing the action against Alberta's Attorney General on the "unconstitutionality of the Preserving Canada's Economic Prosperity Act".
He says Kinder Morgan has to feel frustrated. Prime Minister Justin Trudeau, last week, said he's confident the expansion of the pipeline will help Canadians secure higher prices for oil exports.
However, as a result of these financial pressures, last month Kinder Morgan scrapped all non-essential work on the pipeline, stating that it would ditch the project unless these challenges were resolved by 31 May.
Pallister said that would allow Canadians to "work together as a family and not have these barriers among our provinces get in the way of creating a wealthier country".
If the project does eventually complete, the pipeline expansion will nearly double Canada's production capacity in the pacific oil markets from 300,000 barrels per day (bpd) to 590,000bpd.
Horgan contends Canada has jurisdiction to build the pipeline but that he can regulate what flows into his province within the pipeline.
The NDP government in B.C. came to power past year - supported by the Green Party - after an election campaign in which it committed to working against the pipeline expansion owing to environmental concerns.
Leo de Bever, now chairman of Nauticol Energy, told BNN Bloomberg on Thursday that the Trudeau government has to take away some of Kinder Morgan's risks if it wants the $7.4-billion project to proceed.
After Morneau went public with the option to cover cost overruns May 17, Kinder Morgan CEO Steve Kean said the company and the government were not yet "in alignment" and the negotiations would not take place in public.
Export Development Canada will finance the purchase, which includes the pipeline, pumping stations and rights of way along the route between Edmonton and Vancouver, as well as the marine terminal in Burnaby, B.C., where oil is loaded onto tankers for export. The pipeline itself has been awaiting final route approvals, and construction permits.
"My time is better spent here".
Moe has said the federal government should withhold sending federal infrastructure money to B.C. over that province's opposition to Trans Mountain.
Eby said the lawsuit filed Tuesday in Alberta's Court of Queen's Bench challenges the constitutionality of Alberta's law because it is meant to punish B.C.