In that city, under the leadership of demagogic extremists, disorderly mobs have deliberately prevented the carrying out of proper orders from a Federal Court. Local authorities have not eliminated that violent opposition and, under the law, I yesterday issued a Proclamation calling upon the mob to disperse.

What is the president’s purpose for including these details?

to entertain his listeners with shocking stories of protest
to entertain his listeners with colorful details of mob behavior
to persuade his listeners of the importance of racial equality
to persuade his listeners of the need for presidential intervention