"When the righteous are in authority, the people rejoice: but when the wicked beareth rule, the people mourn."--Proverbs 29:2
To find out God's blessing or judgment on a nation, just look at its rulers. If God's blessing is on a nation, her rulers will be operating on Biblical principles. Power will be decentralized, as the family and church occupy their roles without interference from the state.
On the other hand, if God has cursed a nation, that too will appear in her rulers. The family and church will become mere departments of an all-controlling state. The state and her rulers will promise solutions to all problems and ills, free medicine and guaranteed jobs--even world peace. Give us all power, and we will create paradise on earth, they say. Power will become more and more centralized until God destroys the nation utterly.
Hosea under inspiration of the Holy Spirit says "I gave thee a king in mine anger, and took him away in my wrath." Hosea describes God's judgments on Israel, First, by giving them a king and Second, by taking away the king and the entire nation into captivity.
A poem of c. 1715 illustrates this as well.
"When Israel first provok'd the living Lord,
HE punish'd them with famine, plague, and sword;
Still they sinn'd on--HE, in his wrath, did fling
No thunderbolt amongst them, but a King;
A George-like king was Heav'n's severest rod--
The utmost vengeance of an angry God
God in his wrath sent Saul to punish Jewry,
And George to England, in a greater fury!"
Based on our leaders, is God blessing or cursing these United States?
Poem from J. C. O'Callaghan's excellent study, History of the Irish Brigades in the Service of France.