Conservative stalwart Bill Kristol stepped up his attacks on Tucker Carlson, calling his former employee’s Fox News show “close to racism” and “ethno-nationalism of some kind.” In an interview with CNBC’s John Harwood that aired Thursday, Kristol stopped short of calling Carlson’s primetime show racist, but said the show’s content came close. “He had always a little touch of Pat Buchananism, I would say, paleo-conservativism,” Kristol said of Carlson. “But that’s very different from what he’s become now. “I mean, it is close now to racism, white — I mean, I don’t know if it’s racism exactly — but ethno-nationalism...