" the modern Republican Party is dominated by “movement conservatism,” a monolithic structure held together by big money—often deployed stealthily—and the closed intellectual ecosystem of Fox News and other partisan media. And the people who rise within this movement are, to a far greater degree than those on the other side, apparatchiks, political loyalists who can be counted on not to stray from the party line. "

― Paul Krugman , Arguing with Zombies: Economics, Politics, and the Fight for a Better Future