LONDON (Reuters) - David Cameron's Conservative Party saw its lead in an opinion poll narrow on Saturday, with a survey for the Observer newspaper giving it a 1 percentage point lead over the opposition Labour Party ahead of the May 7 election.
The poll by market research company Opinium put the Conservatives on 34 percent, with support for Labour at 33 percent. The same pollster put the Conservative lead at 4 points last week.
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