Leaders in both chambers of Congress have listed immigration reform as a legislative priority in the 113th Congress. Most policymakers agree that the main issues in "comprehensive immigration reform" (CIR) include increased border security and immigration enforcement, improved employment eligibility verification, revision of legal immigration, and options to address the millions of unauthorized aliens residing in the country. These elements were among the features that President Barack Obama emphasized when he called for the 113th Congress to take up CIR legislation.
Similar to President Obama's recent statements on CIR, former President George W. Bush stated that comprehensive immigration reform was a top priority of his second term. President Bush's principles of immigration reform included increased border security and enforcement of immigration laws within the interior of the United States, as well as a major overhaul of temporary worker visas, expansion of permanent legal immigration, and revisions to the process of determining whether foreign workers were needed. Then — as well as now — the thorniest of these issues centered on unauthorized alien residents of the United States.