Today we get an answer of sorts
Most research into the electoral effect of social media has focused on single elections. That can lead to problems because it is hard to separate the effect of social media from other factors, such as the level of professionalism demonstrated in the campaign, the amount of campaign funds involved, and so on.
Comparing elections that are far apart is also tricky, because the way politicians and voters use social media can change dramatically over electoral time scales, usually in the region of five years or so.
So the U.K.’s two recent elections offer a unique opportunity to look deeper. The first election that Bright and co studied was on May 7, 2015; the second was on June 8, 2017, after a snap call that gave candidates just 24 days to prepare.
