David has been a commercial litigation partner for a large law firm, taught at Cornell Law School, served as president of the Foundation for Individual Rights in Education (FIRE), and currently serves as a Senior Counsel at the American Center for Law and Justice. He is the author of multiple books, including A Season for Justice: Defending the Rights of the Christian Home, Church, and School and the upcoming Home and Away: A Story of Family in a Time of War. David is a regular contributor to National Review Online, a columnist for Patheos, and he has written numerous op-eds and articles, including pieces in the Washington Post, Washington Times, Human Events, Townhall, New York Post, New York Daily News, Boston Herald, and Philadelphia Daily News. Regularly interviewed by both print and broadcast media, David has appeared on ABC World News Tonight, The O'Reilly Factor, CNN Newsroom, The Fox Report with Shepard Smith, and Special Report with Brit Hume, among others. A regular guest on talk radio programs, David has been interviewed on National Public Radio and by numerous hosts, including Michael Medved, Hugh Hewitt, Laura Ingraham, Dennis Prager, James Dobson, and Michael Reagan.

David is also a Captain in the United States Army Reserve, joining the USAR in April, 2006. He currently serves with the 1st Brigade, 104th Division. From October 2007 to September 2008, CPT French served as Squadron Judge Advocate for the 2d Squadron, 3d Armored Cavalry Regiment in Diyala Province, Iraq, where he was awarded the Bronze Star.

David and his wife Nancy have two daughters (ages 12 and 3) and a son (age 10). They live in Columbia, Tennessee.