The ten-state Republican Super Tuesday presidential contest generated more than 530,000 comments on social media over 24 hours, far outpacing any other primary or caucus night so far.
The comments on Twitter, Facebook and other social media were tabulated by Bluefin Labs, a Cambridge, Mass., social analytic company that tracks digital chatter around television.
Men accounted for 64 percent of the social media comments about the race, while women offered 36 percent.
The comments peaked shortly after 9:00 p.m. EST, when Rick Santorum spoke to supporters at a campaign rally in Steubenville, Ohio. The numbers spiked again minutes later when Mitt Romney addressed his campaign rally in Boston.
A CNN debate in October received 548,000 comments, the most of any campaign event so far. Super Tuesday placed second.