Is it really true that congressional candidates who appear on Stephen Colbert's show do better than candidates who don't? Or is it merely truthy? Henry Farrell summarizes the surprising researchy answer from actual political scientist James Fowler:
Democratic candidates who appear on the Report receive a statistically significant "Colbert bump" in campaign donations, raising 44% more money in a 30-day period after appearing on the show. However, there is no evidence of a similar boost for Republicans. These results constitute the first scientific evidence of Stephen Colbert's influence on political campaigns.