Republicans, in fact, are trying not to talk too much about the first lady at this convention, a break with 1996 and 1992, when several speakers criticized Hillary Clinton's role in the White House, a pattern that some critics described as too harsh.

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It is a convention that members of the cabinet may break with collective responsibility in order to represent their local constituents.

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Married with two children, Mr Edwards got his big career break in 2009 when he met a Marvel editor at a convention in Leeds.

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