Original sentence: Barton is the former vice chair of the Republican Party of Texas and served as director of Keep the Promise PAC, a political action committee that supported the unsuccessful 2016 presidential campaign of US senator Ted Cruz.David Barton (born January 28, 1954) is an evangelical Christian political activist and author.He has been described as a Christian nationalist; his work is devoted to advancing the idea that the United States was founded as an explicitly Christian nation and rejecting the consensus view that the United States Constitution calls for separation of church and state.Scholars of history and law have described his research as highly flawed, "pseudoscholarship" and spreading "outright falsehoods"
Edited sentence: , Michelle Goldberg, [[Salon.<ref>What is Christian Nationalism.Barton is the former vice chair of the Republican Party of Texas and served as director of Keep the Promise PAC, a political action committee that supported the 2016 presidential campaign of US senator Ted Cruz.David Barton (born January 28, 1954) is an evangelical Christian, American historian and author.He has been described as a Christian nationalist; his work is devoted to advancing the idea that the United States was founded as an explicitly Christian nation and teaching what the United States Constitution calling for separation of church and state really means