This Gallup poll has a sample of “random hispanic adults”. They could be illegals or unregistered. The poll is useless and only designed to grab headlines.
2,138 in the sample size is pretty massive and should remove any potential misgivings.
Or do you have proof that there were illegals polled?
Oh, I know, headlines from libbbberal polling outlets like Reuters and CNN - their headlines showing good polling numbers for Trump should be embraced - OTOH.