This week, the much-debated Arizona immigration law will come into effect, thereby raising the profile of immigration, generally, as a political issue again, just in time for the final 100 days of campaigning ahead of this year's midterms.
As in previous years, many Republicans have staked out a hard line on the issue. Backing for Arizona's law as a model for other states is widespread.
Unlike in previous elections where immigration also emerged as a hot-button issue, however, one...
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