In Justin Amash, a litmus test for partisan media’s influence

IN EARLY OCTOBER, as the impeachment inquiry into Donald Trump took shape, Oliver Darcy, CNN’s senior media reporter, wrote that right-wing media such as Fox News had “successfully managed to lock the Republican Party from access to its own base.” Republican representatives wouldn’t challenge Trump on Ukraine, Darcy reasoned, because they feared critical coverage from the national conservative-media sources that Trump voters favor.