Prime Minister Theresa May told European Union leaders on Friday she was confident a court ruling that could delay Britain's departure from the bloc would
be overturned and she vowed to stick to her Brexit timetable.
May told German Chancellor Angela Merkel and European Commission President Jean-Claude Juncker she believed her case that the government - not parliament - should be responsible for triggering Article 50 of the EU's Lisbon Treaty to launch the divorce would win in Britain's highest court, a spokesman said.
May is determined to carry out what she calls "the will of the people" and deliver Brexit. But a High Court ruling on Thursday that parliament must approve the process raised doubts over whether she can trigger Article 50 by the end of March as she planned. It also prompted suggestions of an early election.
Her focus on ensuring the government has the lead on breaking with the EU has incensed some lawmakers, and on Friday, a member of her ruling Conservative Party said he had resigned over "irreconcilable policy differences" with May.
The government will appeal against the ruling in the Supreme Court, which is expected to consider it early next month.
"The focus of the government is on the Supreme Court case, winning that case and proceeding with article 50," May's spokesman told reporters.
"Clearly we are disappointed by yesterday's decision, we'd rather not be in this position but we are, so ... the key is our commitment to triggering Article 50 no later. The end of March remains the target for the government."
The spokesman declined to comment on whether the government was now drafting contingency plans for a possible failure in the Supreme Court, a move that would allow parliament to delay any move to start the divorce process.
"What is important here is that we had a referendum, there was an overwhelming result in favor of leaving the European Union and that is what the government must do," he said.
Her foreign minister, Boris Johnson, told Germany's Frank-Walter Steinmeier not to read too much into the court decision. Steinmeier, Germany's foreign minister, said: "Further delay isn't in anyone's interests."
Parliament is unlikely to defy the referendum vote by blocking Brexit, but if — as one aide to May said was the logical conclusion of the court ruling — she is forced to draft legislation for both houses to consider, her March deadline
looks tight, several lawmakers said.
That could force her to call an early election, they said, a move her aides have repeatedly rejected. Bookmakers odds on an election next year were cut after the court decision but 2020 was still the favorite date.
"Enemies of the people"
The court ruling has spurred hope among investors and pro-EU lawmakers that parliament will now put pressure on May's government — which has three high profile eurosceptic ministers in key roles including Johnson — to soften any plans for a "hard Brexit," or a clean break with the EU's lucrative single market.
But it has enraged pro-Brexit campaigners and Britain's eurosceptic newspapers, with the Daily Mail calling the three judges who handed down the ruling "Enemies of the people."
The ruling is stirring passions in Britain just over four months after 52 percent of voters supported leaving the EU in a referendum which deepened splits in the country and gave voice to resentment — mirrored across Western Europe and the United States — with a ruling elite seen as out of touch.
Some lawmakers who had backed staying in the bloc were criticized on social media, accused of trying to stop Brexit.
"Tolerance must win over hate and scaremongering. I'm not alone in standing up for the 48 percent who also have the right to be heard and listened to," said Anna Soubry, a pro-EU lawmaker from May's ruling Conservative Party.
May had wanted to move on Brexit as quickly as possible — keen to show that although she campaigned quietly for Britain to remain in the EU she would "deliver" on the referendum.
There was clear frustration among her aides that the court had put a question mark over a schedule May has been outlining to EU leaders for weeks after some, especially French President Francois Hollande, called for Britain to move quickly.
She was due to "update" Hollande and European Council President Donald Tusk later on Friday, the spokesman said.
May's tough stance seemed to be behind a decision by Conservative lawmaker Stephen Phillips, who backed Britain leaving the EU but wants parliament to have a say, to quit.
"It has become clear to me over the last few months that my growing and very significant policy differences with the current government mean that I am unable properly to represent the people who elected me," he said in a statement.