Republicans didn't like its pathway to citizenship.

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U.S.-born citizens don't need an earned pathway to citizenship.

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The mathematical model wasn't wrong, but it couldn't know with absolute certainty the pathway of Irene.

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There is also little regulation of what consumer genetics companies such as 23andMe and Pathway Genomics can and can't do with their data.

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So when he met with them, he carried a stack of doctors' records for teams to review, and statements from cardiologists that showed his heart pathway had been fixed and there shouldn't be any further problems.

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On immigration, Boehner told the AP he was "encouraged" by bipartisan efforts to reform the nation's fractured laws, but wouldn't say whether he would support a bill that includes a pathway to citizenship for 11 million illegal immigrants.

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But cheap housing and social grants haven't sated demand for education and work opportunities that could offer a pathway to more self-determined advances.

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"What we don't want is to create some vague prospect in the future that somehow comprehensive immigration reform that includes a pathway to citizenship will happen, you know, manana, " Mr Obama said, using the Spanish word for "tomorrow".

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