Make sure to obey the law. Be compassionate and generous to the poor. Don't gaze at half-naked women on billboards. Persuade when possible. Politics is often hardball, but the power of persuasion is widely underestimated.
Persuasion is hard work.
You have to have your facts straight and communicate them skillfully. Let's not give them ammunition. Sometimes persuasion doesn t work. Then you have a decision to make. Christians shouldn t be shy about passing godly legislation.