U.S. Immigration Policy: Chart Book of Key Trends (R42988 March 14, 2016) is a chart book of selected immigration trends. Key immigration issues that Congress has considered in recent years include increased border security and immigration enforcement, expanded employment eligibility verification, reforms to the system for legal temporary and permanent immigration, and options to address the millions of unauthorized aliens residing in the country. The report offers snapshots of time series data, using the most complete and consistent time series currently available for each statistic. The key findings and elements germane to the data depicted are summarized with the figures. The summary offers the highlights of key immigration trends.