As a Christian, however, I refuse to rejoice in my president's failings. Rather, I choose to pray for him in obedience to Scripture.
First of all, then, I urge that supplications, prayers, intercessions, and thanksgivings be made for all people, 2 for kings and all who are in high positions, that we may lead a peaceful and quiet life, godly and dignified in every way. ~~1 Timothy 2:1-2 (ESV)
During the Bush administration, evangelicals quoted this passage with great enthusiasm, and found it easy to pray for a man who championed biblical values. But Paul wrote in a time when Rome ruled the world, persecuting Christians for daring to proclaim that Jesus had greater authority than Caesar. Thus, praying for the welfare of those who persecuted and oppressed them probably didn't come naturally. Their obedience to pray for their ruthless and heathen leaders must have demanded much more resolve than 21st Century American Christian need to summon in praying for Obama.
Obama's policies trouble me. Some of his actions horrify me, actually. But I pray that God will help him reverse his erroneous agenda, learn from his many mistakes and leave the White House in 2017 with a good legacy and a saving faith in the Lord Jesus Christ. Though his downfall would benefit my political party, I don't allow myself to take pleasure in his failures. Not when I can pray that God will bless him.