You can't read the Bible and ignore Politics because the bible speaks a great deal on the subject. I was talking to a christian a couple of weeks ago and he couldn't see why you would bring the bible into politics and government and stated to me "we are no longer living under a theocracy." It's funny because as Christians, to resolve our personal, family, and church issues, we go to the Bible to find our answers, but when it comes to our nations issues, we want to switch books.
The Bible says in Psalm 33:12 "Blessed is the nation whose God is the LORD; and the people whom he has chosen for his own inheritance." But as a nation, when you ignore God and go against the principles set forth in his Word, you can expect the consequences. America is a nation of abundance and there is no question God has blessed America. But in recent years, things have changed. Think back to the increase in our national debt, increase in divorce rates, terrorists attacks, homicides, immorality, theft, and massive hurricanes that constantly come against our shores. If we want God to protect us, we must do that which is pleasing in His sight. We get insight into how God deals with a nation by looking at the Nation of Israel. God Promised that if the nation of Israel would honor him, it would enjoy many blessings such as being a land flowing with milk and honey. To the contrary, if the nation disobeyed God, they would lose those blessing, his protection, and come under His Judgement.
The bible says, "He makes nations great, and he destroys them; he enlarges nations, and leads them away." When a nation turns from God by endorsing and even committing such things as the shedding of innocent blood, redefining what marriage is, God will be faithful to judge that nation and in scripture, when God judges a nation he does this by various means such as turning the nation over to its enemies, taking away the nation's freedom or its privileges, or outright even destroying that nation. The same Bible that restores our own souls, restores our families and churches is the very same tool that is needed to restore our Nation. The only hope our nation has is found in this verse. Now the beautiful thing about God's Word is that its not just what God has said, it's what God is saying. This is a truth of Scripture that is Universal and it applies to every nation and to every people group."Righteousness exalts a nation: but sin is a reproach to any people."