Answer:
In the early 1900s, the United States had a federal constitutional republic form of government. This means that the country was governed by a constitution, which outlines the powers and responsibilities of the federal government and protects individual rights and liberties. The government was divided into three branches: the legislative branch, which makes the laws; the executive branch, which enforces the laws; and the judicial branch, which interprets the laws. The president of the United States served as the head of the executive branch, and the Supreme Court was the highest court in the judicial branch.
This form of government has remained largely unchanged in the United States since the early 1900s, and it continues to be one of the key features of the country's political system.