How can we use I-Ching to divine politics?

Answer in Quora

Originally the I Ching was written as a book about divination in general, later versions were written oriented towards the social and military. 

Obviously, language and visions of the I Ching are located in the circumstances of thousands of years ago; so, what is really important is to learn the energetic meanings of bigrams and trigrams, because that's where everything else comes from.
If we understand well their different meanings and combinations, we will not need to resort to any further interpretation: we will see directly in action those energies in everyday circumstances.