David J. Bier is an immigration policy analyst at the Cato Institute’s Center for Global Liberty and Prosperity. He is an expert on legal immigration, border security, and interior enforcement, and his work has appeared in the New York Times, Washington Post, USA Today, and many other print and online publications. The United States Supreme Court and multiple federal appeals courts have cited his research and writing.

From 2013 to 2015, Mr. Bier drafted immigration legislation as senior policy advisor for Congressman Raúl Labrador, a then member and later chairman of the House Judiciary Committee’s Subcommittee on Immigration and Border Security.