He will never leave nor forsake his people but He can turn his back against nations. Read Ezekiel 14.
I do not believe God has removed Himself or His hand from America. I believe He loves America, and those whom He loves, He chastises. He may withhold blessings from us, but He has not withdrawn His Spirit and turned us over to ourselves...yet. I believe there is a remnant of faithful left in this country, and because of that remnant, He hasn’t turned His back on us. We MUST pray for Barack Obama and the others in our government. It may not be easy for us to do; heck, it may be downright painful, but it is obligation as Christians. If we can’t be obedient in praying for our enemies, in this case our president elect, and having Christ’s love (not our fleshly love, but the love of Jesus in that we seek Him to draw them to Him) in our heart for them, then we cannot complain if God does leave us for good.