How did Judson Moon from The Kid Who Ran For President become more responsible?

In "The Kid Who Ran For President," Judson Moon becomes more responsible through his experiences during the campaign and his interactions with others, particularly his friends and family. As he navigates the challenges of running for president, he learns the importance of considering the consequences of his actions and decisions. This growth is highlighted by his reflections on leadership and the impact he can have on his community, ultimately leading him to prioritize the needs of others over his own ambitions. Through these experiences, he matures and gains a deeper understanding of responsibility.