This edition of ReligionLink provides background on what Christian nationalism is, stories that show how it is influencing politics worldwide and experts to help reporters and readers better understand its heady mix of ideological politics and national identity.

What will 2020 bring to the faith beat?

Today, as in the past, religious groups are divided over how people of faith should respond to the threat of impeachment.

The Rev. Jack Graham leads Prestonwood Baptist Church, a Christian megachurch in Plano, Texas. He is a member of President Donald Trump’s evangelical advisory council and spoke out in support of Trump during the impeachment inquiry. Graham previously served as president of the Southern Baptist Convention.

The Rev. Robert Jeffress is senior pastor of First Baptist Church in Dallas and a contributor to Fox News. He serves as one of President Donald Trump’s evangelical advisers.

Jerry Falwell Jr. is president of Liberty University, an evangelical Christian school in Lynchburg, Virginia. He serves on President Donald Trump’s evangelical advisory board. Arrange an interview through Scott Lamb, the university’s senior vice president for communications.