The Twitter primary: Mitt Romney

Romney has been the long time favorite of Reagan-era conservatives. His failure to come down on either side of the debt ceiling deal have weighed on his following recently but, overall, his Twitter stream is still generally supportive. 

Grant Robertson

Grant Robertson

Grant Robertson is a software engineer and product manager, but he started his career at the Daily Dot as a senior editor focused on data-driven journalism. He previously served as an editor for Download Squad and AOL's Digital Music Weblog.