Britain's High Court has ruled the prime minister cannot begin the Brexit process without Parliament's approval.
This doesn't mean Britain's departure from the European Union is doomed. It makes it harder for Prime Minister Theresa May to trigger Article 50 of E.U.'s treaty, which starts the two-year process of leaving the E.U. May said she planned to notify the E.U. about Article 50 before April of next year.
Time reports the ruling makes it more difficult for May to negotiate terms of the exit with E.U. leaders. According to CNN, it's not likely Parliament will stop plans for Brexit due to the possibility of public revolt.
Fox News reports Britain's government says it will appeal the ruling with the Supreme Court. If the government loses the appeal, Brexit could be delayed.