Wall Street Journal: U.S. presidential candidates have long made the rounds on late-night television, adding some levity to the campaign slog. But as viewership migrates online, politicians are trying to let their humor shine on the web. BuzzFeed, a viral expert, has made videos for candidates this cycle. Louisiana Governor Bobby Jindal, a presidential hopeful, recently participated in a push-up contest. Carly Fiorina showed what it’s like to be a woman in the workplace. Ted Cruz, for his part, did “Simpsons” impressions.