At 40 years of age, Joshua David Hawley (R-MO) is the youngest United States senator. By training a lawyer active in numerous conservative causes, he is also one of very few elected officials to have previously established himself as an author in his own right. During his years at Yale Law School, he brought forth Theodore Roosevelt: Preacher of Righteousness (2008), a fresh exploration of the intellectual evolution of an American president of notoriously elusive ideology. The book also provides potential insight into the political ideals of an American senator who is by definition central to the future of the Republican Party and the conservative movement. The result is an interesting, though not altogether convincing portrayal of the twenty-sixth president as a lifelong crusader for moral action.