So far pro-immigrant groups have often been more visible in public than opponents of the bill, but that could change once it becomes public next month. A fierce backlash helped sink the last attempt at reform in 2007, and the unveiling of the bill will open volatile months of debate and votes in the Judiciary Committee and on the Senate floor over the spring and summer, with success far from assured. The House also must act before the legislation could become law, and prospects there were cloudier still.
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