Chris Hayes has a new book out, and during his MSNBC show on Tuesday he used the occasion to discuss the "sensory bombard" of Donald Trump's second term, and how he thinks it can be fight back against.

In a distracted age, focus is power. And having an inability to focus is giving away power," says Chris Hayes. His new book “The Sirens’ Call: How Attention Became the World's Most Endangered Resource” is out now.

Who cares if people have a negative reaction, so long as they have some reaction?” Hayes talked with his book about Semafor on Friday, and this is an edited version of the conversation. : When did you first realize that something had gone badly wrong in the battle for our attention?