Since joining the Senate in 2011, Mike Lee has gained a reputation for criticizing President Obama. In his new e-book, though, the junior Republican from Utah takes on a fellow conservative, Chief Justice John Roberts Jr., and his 2012 opinion upholding the Affordable Care Act. I recently spoke with Senator Lee about the project.

Why John Roberts Was Wrong About Healthcare: A Conservative Critique of the Supreme Court’s Obamacare Ruling does not hide its political leanings. The title tells the story.