It's not the least bit hard to describe the choice that Texas Transportation Commission members will face Thursday at their meeting in Austin: (1) Agree with the overwhelming preference of this region's elected officials and allow the North Texas Tollway Authority to build the Texas 121 toll road in Denton and Collin counties, or (2) award the lucrative project to the apparent favorite among state toll road devotees, the Spanish company Cintra.From here, it's an easy decision: Pick NTTA.But there is reason to worry that in the boiling pot of Austin politics, the commission may see things differently. Because of...