According to Bob Woodward's book "Rage", Trump protected bin Salman from Congress following the murder of Khashoggi. According to an interview with Woodward mentioned in the book, Trump boasted of saving bin Salman's reputation, saying "I saved his ass". Trump also claimed that Saudi Arabia has invested hundreds of billions of dollars into US military equipment and training, and defended his decision to preserve the Saudi relationship as a means of protecting the billions of dollars of annual arms sales between the two countries.