2 Chronicles 7:14
If 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 will heal their land.
A nation can not be great again, unless it turns from the acts and rejects the ideas that led it to be not so great. Americans must expect from its leaders, no less than they expect from themselves.