Here are a couple of articles to help you become more politically active from the perspective of a Christian worldview.

Identity, Politics, and the Kingdom, by Glenn Sunshine

Puritans and Politics, by Chuck Colson

A conversation starter: “This is going to be an important year politically. What do you think? Should Christians be more or less active in politics this year?"

For more information, click on this book title, God and Government, from our online store. 
This is Chuck's classic work on the Christian's role in government.