Greg_Groogan's Blog

Draw a line starting five miles south of San Antonio extending west to the Mexican border and east to to the Gulf.
I'm not a census taker but my educated guess as a journalist and a Texan is that African-Americans comprise less than 2% of the population of South Texas.
The point of this excercise. A good chunk of Texas' Mexican American population has little or no contact with African Americans. This abscence of intermingling offers a partial explanation as to why Hillary Clinton will recieve 75 percent of the Democratic vote in this region of the state.
University of Houston sociologist Nestor Rodriguez confirms the seperation, sub-surface anti-black sentiment and the sizable disadvantage it's produced for Barack Obama. In combination with the "comfort" factor of Hispanics long association with the Clintons - South Texas will vote heavily for Hillary. Just how heavily could be the key to capturing the state.
African-Americans in the state's major urban areas will vote just as heavily for Obama. There's a chance when all is said and done that the two groups - Clinton supporting Hispanics and Obama supporting Blacks could essentially cancel each other out. That would leave the decision in the hands of white party regulars, left leaning independents and the wild card, a yet to be determined number of Republicans who meddle in the enemy primary.

It's gonna be fun to watch - especially that funky caucus process. Look for things to get heated if precinct votes are tight - and by all indications, they will be.