Boris Johnson gives EU 4 months to make a Brexit deal – or he walks

Prime Minister Boris Johnson told the European Union he'll walk away from the negotiating table in June if it's not clear he's going to get a Canada-style free trade agreement for the U.K.

The pound fell.

The U.K.'s negotiating mandate for the next stage of Brexit, published Thursday, was in many areas close to what the EU published Tuesday. The main differences were on how closely the U.K. has to stick to EU regulations — the so-called level playing field, how the deal will be structured and governed and fishing rights in U.K. waters.

"It is a vision of a relationship based on friendly cooperation between sovereign equals," the government said. "With both parties respecting one another's legal autonomy. The government will not negotiate any arrangement in which the U.K. does not have control over its own laws and political life."

The U.K. is setting a tough timetable for the negotiations, saying it wants the broad outline of an agreement by June, so the deal can be finalized by September. Britain will assess in June whether the talks are on course to succeed, and then decide whether to continue or to "focus solely" on preparing to leave the EU's regulatory orbit without a deal on Dec 31.

The pound fell after the document was released, erasing gains against the dollar and extending losses against the euro.

"We want the best possible trading relationship with the EU, but in the pursuit of the deal, we will not trade away our sovereignty," Cabinet Office Minister Michael Gove told the House of Commons on Thursday.

The competing U.K. and EU documents show where the arguments will be after talks start March 2. The EU argues Britain's size and proximity means simply replicating the agreement with Canada is unreasonable. The U.K. argues that size and proximity aren't necessarily a factor in trade talks.

"Geography is no reason to undermine democracy," Mr. Gove told Parliament. "To be clear, we will not be seeking to dynamically align with EU laws, on EU terms governed by EU laws and EU institutions."

While the EU sees June as a stock-taking opportunity, it has said it will keep trying to get a deal until the last possible moment.

In another potential sticking point, the U.K. said it won't agree to EU institutions, including the bloc's Court of Justice, having jurisdiction in the U.K.

To the EU, that marks a shift from the commitments Britain made in the political declaration, the non-binding part of its withdrawal agreement with the bloc. The U.K. wants the right to have its own policy on subsidies and tax and to refuse any European Court of Justice jurisdiction. That would make it impossible, under European law, for the EU to enforce any deal in which the U.K. pledged to follow the bloc's state aid rules after Brexit.

The details of the U.K. mandate show that, on financial services, it's not looking for a closer relationship than a non-EU country would expect. But Britain does want safeguards against the EU suddenly withdrawing the right for U.K. financial services companies to trade in the bloc.