Why would Donald Trump rush to announce that Tylenol is a potential cause of autism, a claim unsupported by the research? Guest: Dan Diamond, White House reporter for the Washington Post. Want more What Next TBD? Subscribe to Slate Plus to access ad-free listening to the whole What Next family and all your favorite Slate podcasts. Subscribe today on Apple Podcasts by clicking “Try Free” at the top of our show page. Sign up now at slate.com/whatnextplus to get access wherever you listen. Podcast production by Evan Campbell, and Patrick Fort. Learn more about your ad choices. Visit megaphone.fm/adchoices