They've got an old reliable boogeyman who hasn't come out to party for a while, so they'll dust him off, and send his creaky bones out for a turn on the dance floor - Communism. It's going to be all about Communism and the rise of the Red Menace in the Democrat Party.
What BOTH parties don't get, is that a LOT of people, especially young people, are fed up with both sides, and Socialism - a little light Communism - is sounding pretty good right now. A third of Dems already support the Democratic Socialists, which mean even more are cautiously leaning that way, too. About 50% of Democrats are listening to DemSoc candidates, in one of the most contentious elections in history.
A LOT of people, including some on the other side, are starting to think that ANYTHING would be better than this.