I admit I am very ignorant of the process. I do plan to participate though.
My understanding is that Democrats do not have caucuses in Texas, but Republicans do.
It is called the Texas two-step.
Correct me if I am wrong.
I just walk into my precinct voting station, show my voter card and ID, they give me a ballot, and I sit down at a little first grade table and color in a circle next to Ted Cruz, and then stick it into a ballot reader and hope it is programed to give Cruz a vote when his circle is colored, and not Rubio or whatever the media darling is that day. It usually takes about 15 minutes and some cream to get the little table and chair off my 300 lb butt, but hey, most of us here all look about the same after a lifetime of bacon, beef, and pork, topped off with some Blue Bell cookie dough.
People that don't live in Texas have no idea about Blue Bell cookie dough. There is a stack of rocks out by Brenham Texas with a ladder that goes to heaven with angels carrying down half gallon buckets of Ice Cream and they carry back some of our cows. It goes 24/7 and they can't keep up.