Answer :
Answer: The event of voting is the most important in developing a main idea of the text. John Lewis encourages people to speak up and participate in democracy. He states that: "Ordinary people can redeem the soul of America by getting in necessary trouble. The vote is the most powerful nonviolent change agent you have in a democratic society."
Explanation: John Lewis narrates the first time he saw a racist crime happen, and realized it could have been him. Not only he encourages people to speak up about what is wrong on society but also highlights the importance of voting, the most compelling key for change in a democratic community. He emphasizes that ordinary people can regain the peace of the country by being loud enough. With this event, he develops the main idea of the text