Just think about it for a few moments, it's easy to come up with some ideas that would work on some people some of the time:

    Democrats certain to win "we don't really need any more votes"

    Polling both lines expected to reach record '4 hour' lengths!

    "No hope" for democrats come polling day

    DEA planning "surprise" drug-test sting at polling booths

    ICE planning "polling-day round-up!"

    Georgia electoral system "hopelessly rigged" — why your vote won't even be counted

Now imagine that you were getting paid to work full-time at reducing turnout on social media and that it was something you believed-in — it wouldn't be hard to have some decent effect at the margins.