https://www.theverge.com/2018/5/23/17384870/twitter-election-lable-badge-midterm-candidate

Twitter has announced that it’ll apply a new label to US election candidates’ profiles. The badge will also show up below a candidate’s name on tweets in users’ timelines. For now, the labels will only apply to accounts of candidates running for state governor, the US Senate, or the US House of Representatives during the 2018 midterm election.

The company says it’s partnering with nonprofit Ballotpedia to identify candidates’ accounts once they’ve qualified for the general election ballot. These labels will start showing up on May 30th for candidates who have qualified for the ballot and have given Twitter consent to apply the badge.