An organization of evangelical Christians who are working to elect Vice President Kamala Harris claimed on Tuesday that Trump-backing evangelical leader Franklin Graham is threatening to sue them over their ads. Writing on its Twitter, the Evangelicals for Harris group said that “lawyers for Franklin Graham have informed us they are planning to sue us to block voters from seeing our ad.” In a follow up post that elaborated on the lawsuit threat, Evangelicals for Harris taunted Graham for throwing his weight behind Trump despite the former president’s decades of well-documented immorality and h…