Thursday saw a historic moment for the United States as a Manhattan Grand Jury  declared the indictment of former President Donald Trump. 

And while the indictment of a former president is new to America, other democracies have recently brought criminal charges against their leaders.

For more, KCBS Radio's Patti Reising and Bret Burkhart spoke with Mather Dallek, Professor of the Graduate School of Political Management at George Washington University, and author of a new book Birchers: How the John Birch Society Radicalized the American Right.