Brussels, Belgium (CNN)All 27 remaining European Union leaders signed off Britain’s Brexit agreement with mixed emotions at a special summit on Sunday — but the deal’s real test is yet to come.
While EU leaders mourned a “sad day” in the bloc’s decades-long history, UK Prime Minister Theresa May disagreed, saying “I am full of optimism.”
Less than an hour after members gathered in Brussels, European Council President Donald Tusk tweeted that they had endorsed the “Withdrawal Agreement and Political Declaration on the future EU-UK relations.”
