Spoilers
The running storyline of the season has been the struggle of race relations and the first of these three episodes is part of that, but then the next two do not include it. The last two go back to the Brian Latham case.
“Elective Conducts”

The Rome mayoral campaign dominates the episode, and Jill faces more controversy as Zack writes a report that included racial stereotypes. When Zack is confronted by a group of black students in the rest room, Zack peed on them in self-defense. It was shocking.
When it came to the mayor’s race, Carter stepped up and became a true challenger in the election. So much so that, when Jill realized that she had no chance, Jill decided to drop out and support him instead.
Ed Lawson wound up winning the election in a 12 vote difference. Ed Lawson is Donald Trump decades before Donald Trump. It is actually a bizarre correlation.
“Rebels with Causes”

This is the crossover episode with David E. Kelley’s other TV show at the time, Chicago Hope. It guest starred Mandy Patinkin as Dr. Jeffrey Geiger, his character from the show.
Douglas Wambaugh collapses as he prepared for the trip to the Supreme Court. Jill believed he had a heart attack, but wanted to take him to Chicago to see a specialist. She then came into major conflict with Dr. Geiger, whose manner and attitudes rubbed her the wrong way.
Turned out that Doug had M.S. and not a heart attack.
There was also a conflict between Jimmy and Kimberly because Kimberly wanted to date Kenny. Jimmy flipped out over the possibility, and, like all things with Picket Fences, there is much deeper truths behind it. Everything here dated back to Jimmy’s infidelity.
One of my favorite moments was very meta in this episode when Jill commented that more people went to the other hospital (meaning the TV show ER which was also set in Chicago).
“May it Please the Court”

Douglas Wambaugh and John Littleton go to Washington to argue the Latham case.
This was an amazing acting episode from both Fyvush Finkel and Don Cheadle. Their passion showed through the great writing of the episode.
The Supreme Court justices are portrayed wonderfully by the group of the actors cast in these roles.
The second storyline going on in this episode was involving Carter. Carter had made an agreement to have a surrogate give birth to his child. When the surrogate decided she could not go through with it, she wanted to abort the baby. Kelly Connell gives a serious performance from a character that is usually used as a joke.
“For Whom the Wind Blows”

The Brian Latham case comes to a close here.
Maxine, Kenny, and John start to believe that Brian Latham was actually innocent. They convinced Judge Bone that he was innocent and that the father was the killer. Bone took to the court to sentence Latham, except, instead, he threw out the conviction stating that the evidence was not enough to convict. He overturned the conviction and set Latham free.
All of this came from Maxine’s hunch that the father had gone to confession to confess that he actually killed his daughter. Father Barrett would not break the seal of confession, but Max could tell from his expression that there was more to this story. Bone went to Father Barrett and asked him whether or not, in his opinion, Brian Latham was guilty. When Father Barrett said that he thought Latham was not guilty, he was implying to Bone what he knew.
The group went after the father, pushing hard for his wife to testify against him, offering immunity.

Then the mother tells the truth on the stand… she had killed the daughter in a fit of rage and the father had just helped cover it up.
Judge Bone had to, once again, skirt the rules as he said the immunity agreement was gone because the mother had committed fraud. In the end, the police got it done, if not with questionable methods.
Jimmy during this whole time started to have doubts if he could handle the position of sheriff any longer. He saw the fire in the eyes of John, Max and Kenny and Jimmy started to believe that he was in the way.
The Brian Latham storyline came to a close here with another shocking twist that Picket Fences was known for.