He's a political writer and former attorney who took on high-profile cases for religious liberty. He was also a major in the Army Reserve who served in Iraq, and before that he served as president of FIRE, the campus free-speech group. David now writes for The Dispatch and The Atlantic, and his latest book is "Divided We Fall: America's Secession Threat and How to Restore Our Nation." Last summer he wrote a wonderful review of my essay collection, "Out On A Limb," but this episode is the first time we've spoken. It was wonderful to meet the Christian conservative Tennessean who became a foe of the Trump right.