By Gabriela Baczynska and Jan Strupczewski BRUSSELS (Reuters) – European Council President Donald Tusk said on Friday he had no mandate to reopen Brexit negotiations with Britain, while the head of the bloc’s executive, Jean-Claude Juncker, said he “admired” Prime Minister Theresa May. Tusk and Juncker were speaking at a news conference after two days of talks at an EU summit that were dominated by the issue of Brexit and saw the other 27 national leaders of the bloc offer May only vague assurances over their Brexit deal. “I have no mandate to organize any further negotiations. …
