One of my biggest public speaking fears is that I’ll have a coughing fit while I’m trying to make a point. So watching today’s Hilary Clinton speech, which kicked off with a lot of coughing and water sipping, is gut-wrenching. The incident is also lighter fluid dumped onto the simmering flame of theories about the Democratic presidential candidate’s health. No wonder #HackingHillary saw 100,000 tweets today, many of them linking to videos of the speech’s (admittedly hard to watch) beginning. If you’re not sure why this matters, certain corners of the internet have been obsessed with Clinton’s health for months,…

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