excellent post on why he rarely posts on politics anymore. He lists four reasons, which I only give to you in abbreviated form:
1. Political discussions are long and unproductive. Discussion was really right-fighting...
2. Partisan Politics are the concentrate of those common political discussions. Far be it for any politician to admit an opponent is right, or good, or reasonable. If you disagree, you disagree on EVERYTHING.
3. People take stuff waaaaay too personal. We all need to lighten up and deal with the fact that other honest, respectable Americans will differ from your opinion.
4. No political party in the United States of America, which is a secular nation that allows the freedom to express religion, will ever capture the entire ethic of Jesus Christ.
I very much agree. I would also add that because Christians take nation state politics too seriously, they undermine the church of Jesus Christ as God's politic and become promoters of civil religion. And yes, both the religious right and the religious left support civil religion. Both are guilty as charged.
The entire post is worth your time and can be read here.