Answer:
President Theodore Roosevelt sent troops into countries and established new governments in several without congressional approval including actions in Colombia, Panama, Honduras, Dominican Republic, and Cuba.
Step-by-step explanation:
A presidency becomes imperial when it relies on powers beyond those allowed by the Constitution of the United States.
Theodore Roosevelt did not have congressional approval allowed by the Constitution of the United States.
Reference: Schlesinger., A. (1973). The imperial presidency. New York: Houghton Mifflin Harcourt, pp.88-89.