Scores of demonstrators charged with rioting in the District on Friday were well organized, ready to confront police and prepared to violently disrupt the inauguration, according to some of the protesters and organizers. Details of the disturbances in a four-square-block area downtown that led to more than 230 arrests began emerging after protesters made their first court appearances Saturday, a process that continued through the evening as defendants were brought into D.C. Superior Court in batches of 10. Most faced a felony charge of rioting, which carries a maximum 10-year prison sentence. The preparation undertaken by protesters included arriving armed...