The United States Government is based on a system of three branches of government. These three branches are the Executive, the Judicial and the Legislative branches. Each branch is given powers by the Constitution of the United States of American.
For laws:
The Legislative branch creates the laws based on request made by the voting public to their representatives. The legislative branch has two subdivisions which are the U.S. House or Congress and the U.S. Senate. The Executive branch has veto power over the laws created by the legislative branch but the legislative branch can override that veto with a majority vote. The roll of the judicial branch is to judge if the laws created by the legislative branch follow the spirit and intent of the constitution because the constitution can not be overrode by any law made by the legislative branch of government.
The other duty of the federal government is to create a budget to spend the taxes taken in by the IRS for federal taxes.
What are these tax dollars spent on is often a question.
So it is up to the voters to decide if this is how they want their money spent. I like most individuals would like to see the department of education receive more and the department of defense receive less tax dollars. One other little detail is the lowest item spent is the Corp of Engineers which protects our levees and dams just a thought. Click on the chart for a larger view.
The Department of Health and Human Services
Department of Defence