Politics. Now, this is a very interesting article about the political divide in the United States. Is it really of race, black versus white, as many people think? Nope, that is not the real political divide. The real political divide is young versus old, where the opposing political parties are united by a a generational divide.
20190314/https://www.huffpost.com/entry/america-baby-boomer-old-generation_n_5c82db8de4b0ed0a00136b0c