As the race for the White House lurches into high gear, Tom’s guest today is Tim Alberta.He’s the Chief Political Correspondent for POLITICO, and he has written a terrific book about the recent history of the Republican Party, and the many internecine ideological and strategic battles that have raged within the GOP ever since the Presidency of George W. Bush.The book is called American Carnage: On the Front Lines of the Republican Civil War and the Rise of President Trump. It is a must-read for Washington insiders, political junkies and anyone who has ever pondered how Donald Trump has engineered such a dramatic transformation of the Republican Party as well as the conservative movement in America.