Perhaps not coincidentally, it also is the type of argument that might sway swing votes on the Supreme Court -- as well as swing voters -- to support this extension of individual civil rights.

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The gameplay offers players many options on how to sway voters in key swing states, such as Ohio.

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The country is fast becoming to such agricultural commodities as soyabeans what Saudi Arabia is to oil: a swing producer, whose decisions can sway the world market.

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