The express powers of Congress are those powers granted specifically in the United States Constitution, which include the ability to make laws, amend the Constitution and declare war. Additionally, Congress is also responsible for the United States Postal Service. The House of Representatives also has ability to initiate tax laws and call for the impeachment of government officials. The Senate approves all Presidential appointments and tries government officials for impeachment.
Congress is part of the three main branches of government: legislative, executive and judicial. As a lawmaking unit, Congress is part of the legislative branch. Congress was assigned express powers in the United States Constitution because the government was designed to have checks and balances so that no one branch is able to exercise too much power of the others. The founding fathers of the nation did not want the United States to be like the monarchies of Europe in which one individual exercised (sometimes tyrannical) power over a nation. Another term for express powers is enumerated powers. In addition to express or enumerated powers, Congress also has implied powers. Implied powers are powers that are not explicitly granted to Congress, but through its ability to make and pass laws, Congress can grant them to itself in the best the best interest of job fulfilment.