Jem and Aunt Alexandra disbelieve in Atticus. Presumably, other residents are hardly in support of him. We have seen his weakness in front of Mr. Cunningham's mob. That weakness is even more significant under the environment of the whole Maycomb.
The trial of Tom Robinson is about to begin. All sorts of people gather in the court,
like strangely named Mr. X Billups. Miss Maudie is an exception. She thinks the trial is like a Roman carnival, which exposes a person's crime and seizes his life for entertainment. She may understand Tom easier than other folks do, because she has known Boo Radley's experience. She sympathizes Tom, and stands on the same size with Atticus. Unlike Atticus, she can do nothing for Tom on the court.
White and black people are seated in different areas in the court. Mr. Dolphus Raymond sits in black people's area. Being a white man, he refused to marry a white woman. He married a black woman instead, and he has mixed children. His vast land and adequate wealth embolden him to do such unusual things, despite other residents' criticize. The children come late and sit in black people's area. They may see what white people can hardly see.