(CNN) -- A bipartisan group of senators formally filed legislation early Wednesday calling for border security as the cornerstone of immigration reform.
The bill also would prevent undocumented immigrants from reaching full legal resident status until after the government takes steps to keep unauthorized workers from getting jobs in the United States, according to a summary released before the bill was filed.
The measure drafted by the "Gang of Eight" senators says "high risk border sectors" -- those with at least 30,000 illegal crossings a year -- must be sealed off before most undocumented immigrants could start their journey to legal residency.
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