Well, PrayForSarahPalin.com has the answer for ya.
In Ephesians 6:14-18, the apostle Paul warns: A final word: Be strong in the Lord and in his mighty power. Put on all of God's armor so you will be able to stand firm against all strategies of the devil. For we are not fighting against flesh-and-blood enemies, but against evil rulers and authorities of the unseen world, against might powers in this dark world, and against evil spirits in the heavenly places. Therefore, put on every piece of God's armor so you will be able to resist the enemy in the time of evil. Then after the battle you will be standing firm.
OK, now you should understand. (Even though they got the verse numbers wrong. It's Ephesians 6:10-13).
You should pray because you are fighting on God's side and God is on Sarah Palin's side. Barck Obama is "of the devil". He and Joe Biden are not "flesh-and-blood enemies" but rather "evil rulers and authorities of the unseen world" and "mighty powers" of the "dark (black) world." They are allied with "evil spirits" in high places (like Washington and New York). This is the final battle "in the time of evil." You must "stand firm" by voting for Sarah Palin (and old what's his name).