How Bernie Sanders Packs His Campaign Rallies

“The overflow crowds showing up to hear Bernie Sanders these days are a testament not only to his current popularity and the campaign’s social-media savvy but also to the promotional abilities of an alchemy of like-minded interests: progressive activists, labor unions and even Sarah Silverman,” the Washington Post reports.

“All told, Sanders has attracted more than 100,000 people to his rallies in recent weeks, riding a wave of Facebook shares, retweets and old-fashioned word-of-mouth to become by far the biggest draw on the campaign trail.”