I just came across this site last week: http://www.politicaltheology.com/blog/. It has a lot of things going on with it, but it looks like each week they asks somebody to post political/theological reflections on the upcoming lectionary readings. I don't think they do each reading, each week. I think they ask somebody to submit something, and that person picks one of the readings to comment upon.
So last week, the post was "The Politics of Exalting the Humble—Matthew 23:1-12" and the previous week was "The Politics of Being Replaced—Deuteronomy 34:1-12" (which has some tie ins with election season) If you just want to see these posts, choose The Politics of Scripture under the Departments pulldown.