Which Primary?

Life was easy before I turned 12. I only had one primary to go to. I moved up from Sunbeams to CTRs to Valiants to Blazers ...

... but now I have TWO primaries to choose from, and I don't know where to go.

Image from Wikipedia.

I took some time off from studying Reproductive Biology and dropped by the League of Women Voters, one of the most awesome non-partisan groups out there. I always read their flier before elections, because they get all the candidates to respond to questions, and it helps me stack them up side-by-side. Except this year Mike Huckabee "didn't qualify." Dunno what that means...

And then I went to Harris Votes to get my sample ballot, so I don't waste time deciding on a candidate running in another district. If every county doesn't have something like this, they should, because between the two links above, it is SO easy to be a good democratic citizen of the USA.

However, all of my footwork found that the Democrats have 18 contested positions this primary, and the Republicans have 16 contested positions and 3 ballot items that will be party platform issues.

So now, after all this hand-wrangling over the next president of the USA, it's not at all about that anymore. Heck, everyone knows it's the local laws and leaders that affect us the most. So, do I join the Democratic party, or the Republican party?

Which primary do I go to?