It's primary day in America, folks: citizens in Michigan and Arizona are headed to the polls Tuesday to vote for their preferred Republican candidate to go up against President Obama in November. As we've seen in the past, the social web is aflame with posts, tweets and videos from the political battlegrounds.
According to sentiment analysis company Topsy, social media users are split on the Republican candidates. Throughout Tuesday, each candidate has seen about 30% positive sentiment and 30% negative sentiment on social networks such as Facebook and Twitter. However, Rick Santorum has a slight edge over the others and Mitt Romney is in dead last in the sentiment battle. Santorum's also winning the battle of Google searches:
Meanwhile, the candidates are trying to get their message heard and gather support. Reporters embedded with the campaigns are using the web to get up-to-the-second updates to their readers. And voters, caught in the eye of the political storm, are talking about what they like -- and loathe -- about each candidate.
As Tuesday night's primaries unfold, Mashable is sharing the best examples of social media's use during the showdown. Follow along to see how politicians, journalists, and citizens are using social media in Michigan and Arizona's political contests. We’ll be updating this continually:
Update: As of 10:21 p.m. ET, all major networks have called both races for Mitt Romney.
[View the story "The Michigan and Arizona Primaries on Social Media" on Storify]