This article by Amanda Seitz is published by Associated Press. Here is an excerpt:

During last year’s gubernatorial recall effort in California, Los Angeles election officials found that using social media to respond directly to questions, mishaps at polling locations or misleading claims helped quickly stamp out viral misinformation or misunderstandings.

In one case, a Twitter user posted that he was unable to cast his ballot at a polling location because of a technical error that showed he had already voted. His story started to gain traction on social media, where it was held up as proof of widespread voter fraud.

The Los Angeles County Registrar-Recorder County Clerk’s office responded publicly to the tweets, explaining that staffers had reached out to the voter directly to make sure he could cast a ballot.

Find more information, see full article here. Also, take a look at the transparency reference websites Judgepedia and Ballotpedia that are also great resources.