Britain's Theresa May appeared on course to win a crushing election victory in June after opinion polls put support for her ruling Conservative party at around 50 percent, double that of the opposition Labour party.
May's decision to call a June 8 election stunned her political rivals this week and a string of polls released late on Saturday suggested the gamble had paid off, with one from ComRes showing the party of Margaret Thatcher enjoying levels of support not seen since 1991.
May, appointed prime minister in the turmoil that followed Britain's vote to leave the European Union last June, said she needed the election to secure her own mandate and strengthen her hand for the Brexit negotiations ahead.
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