If Trump is charged, will it cause a civil war?

No, it will not. There is no Trumpurd organization capable of provoking a civil war. Wars do not just happen in a magical way. They require enormous resources and enormous planning, especially those who would hope to overthrow the US government. Neither T-Rump nor any of his people have the resources, not the resources, or even the intellectual ability, to cause a civil war. To believe that he or she is doing it is funny.