	Introduction

The number of foreign-born people residing in the United States is at the highest level in U.S. history and has reached a proportion of the U.S. population—12.6%—not seen since the early 20 th century. Of the 38 million foreign-born residents in the United States, approximately 16.4 million are naturalized citizens. According to the latest estimates by the Department of Homeland Security (DHS), about 10.8 million unauthorized aliens were living in the United States in January 2009. The Pew Hispanic Center recently reported an estimate of 11.1 million unauthorized aliens in March 2009, down from a peak of 12 million in March 2007. Some observers and policy experts maintain that the presence of an estimated 11 million unauthorized residents is evidence of flaws in the legal immigration system as well as failures of immigration control policies and practices. There is, indeed, a broad-based consensus that the U.S. immigration system is broken. This consensus erodes, however, as soon as the options to reform the U.S. immigration system are debated. Addressing these contentious policy reforms against the backdrop of economic turbulence sharpens the social and business cleavages and may narrow the range of options. This report synthesizes the following components of the reform debate: legal immigration; legalization; immigration control; refugees, asylees, and humanitarian migrants; and alien rights, benefits, and responsibilities; and offers a roadmap to other Congressional Research Service reports that more fully analyze the policy options. Illustrative among these issues that might arise in the 111 th Congress are border security, worksite enforcement, document fraud, criminal aliens and the grounds for inadmissibility. During his time in the Senate, President Barack Obama supported comprehensive immigration reform legislation that included increased enforcement as well as a pathway to legal residence for certain unauthorized residents.
There is a broad-based consensus that the U.S. immigration system is broken. This consensus erodes, however, as soon as the options to reform the U.S. immigration system are debated. The number of foreign-born people residing in the United States is at the highest level in U.S. history and has reached a proportion of the U.S. population—12.6%—not seen since the early 20th century. Of the 38 million foreign-born residents in the United States, approximately 16.4 million are naturalized citizens. According to the latest estimates by the Department of Homeland Security (DHS), about 10.8 million unauthorized aliens were living in the United States in January 2009. The Pew Hispanic Center recently reported an estimate of 11.1 million unauthorized aliens in March 2009, down from a peak of 12 million in March 2007. Some observers and policy experts maintain that the presence of an estimated 11 million unauthorized residents is evidence of flaws in the legal immigration system as well as failures of immigration control policies and practices.
The 111th Congress is faced with strategic questions of whether to continue to build on incremental reforms of specific elements of immigration (e.g., employment verification, skilled migration, temporary workers, worksite enforcement, and legalization of certain categories of unauthorized residents) or whether to comprehensively reform the Immigration and Nationality Act (INA). President Barack Obama has affirmed his support for comprehensive immigration reform legislation that includes increased enforcement as well as a pathway to legal residence for certain unauthorized residents.
This report synthesizes the multi-tiered debate over immigration reform into key elements: legal immigration; legalization; immigration control; refugees, asylees, and humanitarian migrants; and alien rights, benefits, and responsibilities. It delineates the issues for the 111th Congress on permanent residence, temporary admissions, border security, worksite enforcement, employment eligibility verification, document fraud, criminal aliens, and the grounds for inadmissibility. Addressing these contentious policy reforms against the backdrop of economic crisis sharpens the social and business cleavages and narrows the range of options.
The report will be updated as events warrant.