Many people take it for granted: Evangelicals are Republican, Democrats aren't religious, and moderate Christians may as well not exist. But it wasn't always this way. Those who grew up evangelical in the 1980s were just as likely to sit next to a Democrat as a Republican at church. What happened in the decades that followed? Data scientist Ryan Burge demystifies the recent polarization of American pews, helping listeners understand why the religious landscape has changed so much in the last fifty years and how this divide impacts every aspect of society. Burge argues that Americans prioritized their political parties over their denominations amid the culture wars. As many churches embraced conservative politics, moderate and liberal Christians left the church in droves. Yet Burge shows us that returning to church may be just what America needs. Many Americans want to be people of faith and believe deeply in the principles of religion. Churches provide support systems for needy families. And statistically, churchgoers tend to be more tolerant and have better mental health than Americans who don't attend church. Blending personal narrative and carefully presented data, Burge urges listeners to rebuild faith communities that can reach across the aisle.