Final answer:
John Adams began to worry that members of his party were willing to use force to destroy Native American tribes.
Step-by-step explanation:
During John Adams's presidency, he began to worry that the members of his party were willing to use force to destroy native American tribes. This concern arose from the ongoing conflicts between settlers and Native Americans over land and resources. Adams feared that his party members would resort to forceful measures to eliminate Native American tribes in order to secure more land for the expanding United States.