Via John Burn-Murdoch of Financial Times (see here): “An analysis by David Jackson, professor of political science at Bowling Green State University, found that an endorsement by a major celebrity could even have polarising impacts. Jackson discovered that while Democrats tended to say an endorsement of a presidential candidate by a liberal celebrity would increase their support for the candidate, that was more than offset by Republicans claiming it would put them off. And endorsements of all kinds tend to repel more moderates than they attract.” Or in the immortal words of Michael Jordan: