The domestic dispute forced Trudeau to interrupt a 10-day global trip to Peru, France and England and return to Ottawa briefly for an in-person meeting with Alberta Premier Rachel Notley and Horgan on Sunday.
But neither were solutions found.
"If Trudeau believes he can ram this pipeline through, he is misreading both the constitution and the electorate, while underestimating the opposition on the ground".
That could hurt B.C., which uses Alberta's refined fuel.
Burnaby Mayor Derek Corrigan says the expansion project "short circuits" the legal process and civil disobedience against the pipeline it will only continue to grow.
Horgan says Trudeau laid out "legislative and financial measures" to push the project forward, but he did not elaborate.
The legislation is the latest manoeuvre in the ongoing dispute over the pipeline project that has the federal and Alberta governments supporting the pipeline expansion project, while B.C. opposes it, saying it is defending its coast from a potentially catastrophic spill.
He also stated that his government will be exploring legislation that would put decisions regarding the pipeline more firmly in the hands of the federal government.
Trudeau revealed that discussions with Kinder Morgan around assistance are already underway in Calgary, Toronto and New York City.
Trudeau also obliquely referenced earlier talk of the federal government taking a stake in the expansion project (in order to support it), by noting that "we are actively pursuing legislative options that will assert and reinforce the government of Canada's jurisdiction in this matter". That's nice. In Canada's best interest.
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Andrew Brunson, an evangelical pastor from North Carolina, has been detained by Turkish authorities since October 2016. A declaration a year ago gave Erdogan the power to offer foreigners in exchange for Turkish prisoners jailed overseas.
The idea would be to legislatively poke a stick in Horgan's eye, hoping that will get him to blink.
Canadian Prime Minister Justin Trudeau defended Sunday his government's backing of a controversial pipeline project, the Kinder Morgan Canada Ltd oil pipeline, claiming the world could not afford to choose between the environment and the economy.
Heyman said that shortly after winning the 2017 provincial election, Horgan was informed by legal experts that "stopping the project was beyond the jurisdiction of B.C". The parties agree to "immediately employ every tool available" to stop the project. The Alberta government and Ottawa back the project.
Even if Horgan realizes he has backed himself into a corner, he can't simply admit he overstepped his authority and made a mistake.
March 15, 2018: B.C. Supreme Court grants indefinite injunction preventing protesters from coming within five metres of two work sites for the project. And the courts are already involved. He said government investment in the project would do nothing to solve B.C.'s continuing opposition.
The federal government approved the proposed Trans Mountain pipeline expansion project in 2016.
Mr Trudeau emphasized that the project represented a "vital strategic interest" for Canada and insisted, "It will be built".
Horgan asked the federal government for help in March to ease the pinch felt by local drivers, a move Notley called hypocritical.
It has been a week since Kinder Morgan announced it was halting all non-essential spending on the plan to build a second, bigger pipeline parallel to the existing one between Edmonton and Burnaby, B.C. The company gave the Trudeau government until the end of May to reassure its investors the pipeline would be built, despite mounting opposition.