WASHINGTON, D.C. (CBS News) — After weeks of deliberations, congressional Democrats and the White House on Thursday unveiled an immigration overhaul bill that would reshape U.S. immigration laws and allow millions of immigrants living in the country without authorization to obtain legal status.

The 353-page U.S. Citizenship Act would create a two-tier legalization program which would automatically make farmworkers, Temporary Protected Status (TPS) holders and undocumented immigrants who came to the U.S. as children eligible for green cards, according to a 66-page summary of the legislation.

After three years, they could apply to become U.S. citizens. All other eligible unauthorized immigrants would be able to request temporary deportation relief and work permits while being placed on an eight-year pathway towards U.S. citizenship.

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