So we have a situation with competing studies that offer different conclusions. What’s a reporter to do? Read them all, I say, and weigh the quality of the evidence, credibility of the sponsors, and exactly what questions were asked. And beware of presenting false equivalence. On this one, though, even some he-said/she-said dueling conclusions, are better than what ONNtv did—letting a candidate’s rhetoric stand on its own.

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Trudy Lieberman is a fellow at the Center for Advancing Health and a longtime contributing editor to the Columbia Journalism Review. She is the lead writer for The Second Opinion, CJR’s healthcare desk, which is part of our United States Project on the coverage of politics and policy. Follow her on Twitter @Trudy_Lieberman.