FROM the Christianity Today vault: http://www.christianitytoday.com/ct/2003/march/33.74.html

(My comments in bold)

The center of any theory about why Christians should vote must be a theory about why Christians do anything at all: that the Lord our God might be glorified. And how do we glorify God in our lives? Not by what we force others to do, but by what we ourselves do.

This connects with the Westminster Confession and John Piper's general view of our purpose being "to bring God glory"

One consistent feature of Christ's ministry was sacrifice of the self and its interests for the benefit of others. A Christian theory of voting, therefore, might be sketched along the same lines. Others vote because they are determined to win. Maybe Christians should believe their votes signal a willingness to lose.

Are we ready to be losers? To be losers for Christ? This a paradigm-shifting truth of Christianity. It's not about us. It's not about what we can accomplish. Christian belief is very humbling because it's not all about us. We admit that we aren't in control, and we need God's help.

Voting is the ultimate symbol of trust in our fellow citizens. To vote is to propose that we settle our differences not by warfare, and not by litigation, but by accepting the forms of democracy and laying our cherished certainties on how the world should be on the table. We rely on persuasion rather than coercion, which means that we risk being unpersuasive. If we are sufficiently unpersuasive, then our side loses and the other side wins.

What are the implications for this mindset? It means we aren't tied into the results. It means politics aren't greater than God.
How does it affect the idea of "activist judges"? I guess it makes us think about how much how persuasion is still required.

In that sense, our voting represents a sacrifice, an acknowledgment of the possibility that we will lose the political struggle, at least in the short run. But by taking that risk, by allowing our fellow citizens to outvote us, we place our hope in the next world, not this one, enabling us to render unto Caesar and glorify the Lord.