Right now the Democratic Party's convention and local election Primaries haven't happened. Best that can be done is to influence the party platform through this primary season to influence or change what a 'typical' Democrat may be.

There's a massive influx of money right now going towards keeping typical Democrats in line with Israel. So it appears that will predictably be a prevailing issue one way or another.

So like: most of my local elections usually feature Democrats v Democrats so I'll likely opt for the non-Zionist or at least the less Zionist of the two. That may send a message for the winner of the Presidential ticket, if anything.