At Wrigley Mechanical in Fargo, North Dakota, Mitt Romney announced the support of Harold Hamm, the founder and CEO of Continental Resources and a pioneer in the extraction of oil from the massive Bakken formation in North Dakota and Montana.
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Mitt Romney announces support of Harold Hamm
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Romney clinches Republican nomination
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Mitt Romney will endorse John McCain
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Mitt Romney receives endorsement from Eric Cantor
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Romney visits supporters in Edina
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McCain claims US has 'the world's largest oil reserves'
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Jeb Bush endorses Mitt Romney
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McCain calls for offshore drilling
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Former United Nations ambassador John Bolton endorses Mitt Romney
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Romney wins Alaska
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Romney endorses Haley for governor
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Mike Huckabee endorsed by Texas State Senator Dan Patrick
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John Bolton endorses Romney
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Former state representative Quayle endorses Romney
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Donald Trump endorses Romney for president
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'Mitt Romney is the Prince Charles of the Republican nomination'
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Tim Pawlenty endorses Mitt Romney