I have some questions - the whole free will thing is a little confusing. Does praying for the nation really help? If our very own salvation is dependent on a personal relationship with Christ, is it possible to deliver others from evil with prayer when in fact they deny Christ? If God grants all men free will, how can it be possible to turn a man from Satan if that is his choice? Getting prayers answered is a tricky thing and it doesn't just happen automatically. Several conditions must be met by even true believers in order to at least have their prayers heard...much less answered. Do non believers "even have a prayer" when it comes to asking favors from God? There is a lot in the bible about believers being given authority in Jesus' name to cast out demons. That might work for the head spinning / soup spewing kind - but I am not so sure you can change a man's heart if it is against his will. Does man have the power over others' free will when in fact God refrains from forcing the issue?
2 Chronicles 7:14 If (all) my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and (only then) will heal their land.