Left has rejected the outcome of the last two presidential elections won by Republicans. Rejects judicial authority of Supreme Court when it decisions don't accord with its agenda. Rejects legislative authority of Congress when not dominated by Left
We're in the middle of a civil war.
It may not be a shooting war. For the most part. (Though don't tell that to some Republicans at a charity game practice who were targeted by a Bernie Sanders supporter.) But it's a war all the same.
The war is still being fought with paper and protests. But it's based on irreconcilable differences between parts of the country. Much like the ones that brought on the war between brothers.