At first glance, Sen. Thom Tillis’ (R-NC) new book, How to Lose Friends and Antagonize Presidents, looks like it might be a genuine act of political courage.In an era when few Republicans are willing to challenge Donald Trump, a senator writing about the costs of standing up to a president sounds refreshingly unusual.Join now to continue reading.Members get exclusive analysis, bonus features and no advertising. Learn more.If you’re already a member, sign in to your account.