Hillary Clinton tries to convince voters they can trust her despite changing positions. Bernie Sanders tries to appeal to more Americans. And three lesser-known rivals work desperately to get attention.
David Brooks: Since Rush Limbaugh came on the scene, the Republican rhetorical tone has grown ever more bombastic, hyperbolic and imbalanced. Public figures are prisoners of their own prose styles, and Republicans from Newt Gingrich through Ben Carson have become addicted to a crisis mentality.