Republican contender John McCain has also been campaigning in Ohio and Texas in advance of Tuesday's primaries.

共和党参选人麦凯恩也在星期二的两场初选前在俄亥俄州和德克萨斯州展开竞选活动。

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John McCain is campaigning in the battleground state of Florida on Friday, where he plans to tour the Everglades in an airboat.

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Hillary Clinton, Barack Obama and John Edwards are all campaigning to get health insurance to the 48 million Americans who otherwise wouldn't have it in 2009.

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John Edwards, who was campaigning in Iowa, cut short the rest of his schedule on Tuesday to be with his spouse.

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