BREAKING: High Court says UK government can't trigger EU exit without Parliament backing; appeal expected.— The Associated Press (@AP) November 3, 2016
A High Court ruling just placed Brexit on the back burner.
What the ruling means
A British High Court on Thursday ruled that Prime Minister Theresa May's plan for exiting the European Union will need approval from Parliament before she is allowed trigger Article 50.
Article 50 of the EU pact says: "Any member state may decide to withdraw from the union in accordance with its own constitutional requirements."
May vowed to appeal the ruling to the Supreme Court of the United Kingdom, which consider the case in December.
Britain's High Court is set to rule on whether the government can trigger the United Kingdom's exit from the European Union without approval from Parliament.
The case, set for a decision on Thursday, is considered the most important constitutional matter in a generation: whether Prime Minister Theresa May can start negotiating Britain's exit from the EU without a vote in the House of Commons.
At the core of the matter is the balance of power between Parliament and the government.
This is good news for campaigners who have battled the decision.
Regardless of the victor, the case will likely be immediately appealed to the Supreme Court.
The "Brexit" was approved by British voters by a slim majority in June.
May has said she will invoke Article 50 of the EU treaty triggering two years of official exit talks by March 31.
The Associated Press contributed to this report.