British Prime Minister Theresa May was headed back to Brussels on Saturday to defend the planned Brexit divorce deal even as Spain threatened to boycott an EU summit meant to endorse it.
May has final day talks scheduled with EU leaders Jean-Claude Juncker and Donald Tusk, although diplomats said the withdrawal agreement is finished and ready for EU leaders to approve on Sunday.
Nothing in the painful 17-month withdrawal process has gone smoothly, and on Friday, Spain’s Prime Minister Pedro Sanchez warned he might not attend if the leaders do not acknowledge that Madrid holds a veto over the fate of Gibraltar in any post-Brexit negotiation of new EU-UK ties.
Visiting Cuba, Sanchez said that Madrid must be allowed to negotiate directly with London on Gibraltar and give its specific assent to any changes to its relationship to the European Union in a future agreement between Britain and Brussels.
“If there’s no agreement, it’s very clear what…