There has been early voting going on in TX for over a month now. Cruz probably already has a nice lead built in. I will be interested to see where the strength for the three main candidates are.
Also this is not a bad poll for Sanders. Unfortunate he's not trying to pump some money into this state, probably costs to much. Shouldn't be that bad a of a delegate slaughter here if this number is correct.
One important thing to remember is that in the contests thus far, Trump's lead has been
larger among those who decided more than one month before the election, and often even among those who decided more than one week before the election. Even Cruz in his home state might not be enough to eat into that.