You'll find it here: http://christianaudi...vote-tony-evans
Its available in MP4 (for iPod, etc.) or MP3 format (for anything else in the way of media players, and runs about 2.5 hours. I've listened to the first third of it so far on my commute to and from work and its interesting. The author brings up a lot of scripture, and its not about political parties. Here's the summary from the site:
Christians are a large and influential voting block today. But as each governmental election approaches, an increasing polarity occurs within those claiming the Christian faith. This comes as a result of party-voting rather than voting according to Biblical mandates and authority. To refocus correctly, Dr. Tony Evans goes back to the basics and teaches on how God established government as a divine institution whose tasks include promoting the well-being of those within its realm and protection from evil.
Scripture trumps all political alliances making the voting decision a critical opportunity for Christians to promote God's Word and His values through whom they elect. In the face of increasing emotions the Christians representing God's kingdom values should communicate His truths in a manner reflective of the King - in a gracious and strategic way. Dr. Evans also looks at the necessary qualities in a good candidate which include intellect, education, competency, skill and spiritual beliefs - whether certain issues are non-negotiables, and how a responsible citizen is to research a candidates' position in order to evaluate it against God's Word.