I don't think Anderson really has a lane here. IOTL, his appeal was "Carter sucks and we need a change, but Reagan is crazy". Reagan if anything comes off as even crazier here (or at least bad in various ways), but Carter comes off much, much better. He wasn't stuck in a grueling primary, he resolved the hostage crisis peacefully, Volcker isn't in there hammering the economy to get inflation down, and, of course, he had the whole "I got shot" thing. I don't think there will be many people who don't want to vote for Carter but also don't want to vote for Reagan. A few, sure, but not unusually many.