Jim Wallis of Sojourners wrote a best-selling book in 2005 expanding on that point; the subtitle of "God's Politics" is "Why the right gets it wrong and the left doesn't get it."
A note: I am not registered with either party; I have voted for candidates on both sides and would probably do so in the future. But here I wanted to share a few of Wallis's insights that resound with me, at least those in the first 50 pages. I'll keep you posted on how it goes.
"Religious wisdom suggests that the more overwhelming the military might, the more dangerous its capacity for self- and public deception. If evil in this world is deeply human and very real, and religious people believe it is, it just doesn't make spiritual sense to suggest that the evil all lies "out there" with our adversaries and enemies, and none of it is "in here" with us -- embedded in our own attitudes, behaviors, and policies."
"Someday, a smart Democrat will figure out how both pro-choice and pro-life people could join together in concrete measures to dramatically reduce the abortion rate by focusing on teen pregnancy, adoption reform, and real support for low-income women." AMEN!
"Many people of faith have grown weary of the religious Right's attempts to narrow the moral litmus test to abortion and gay marriage."
"A personal God demands public justice as an act of worship."
"We must never be satisfied with mere protest or complaint about the things we believe are wrong. Rather we must do the harder, more creative, and ultimately more prophetic work of finding and offering alternatives."