Johnson has never faced another contest nearly that close. She has been reelected nine more times with at least 72% of the vote. In 2012, Johnson easily beat two opponents in the Democratic Primary, State Representative Barbara Mallory Caraway and lawyer Taj Clayton, gaining 70% of the vote; she went on to win the general election by a landslide, gaining almost 79% of the votes cast. She was re-elected in 2014, 2016, 2018, and 2020. In October 2019, Johnson announced she would be retiring after her 2020 term.