I have a Mexican passport. But it stayed in Mexico. What do I need to get it out here in Los Angeles?

That's the first thing you have to make an appointment and they already tell you what they do.

Hi Evaristo to get your passport, I suggest that you make an appointment first because if you arrive and have no appointment they cannot attend you due to the amount of people who want to also process some paper ... on the other hand I processed the passport last year and They asked me for a birth certificate, photo identification, proof of address and subsequently the payment of the passport depending on how many years you want it ... I hope this information helps you but in the same way you can contact the Mexican consulate.