Formal powers are created in the executive branch, while informal powers are not. Formal powers are created by Congress, while informal powers are not. Formal powers are changed over time, while informal powers cannot be changed. For example, formal powers are when the Constitution explicitly assigns the president the power to sign or veto legislation. Also, implied powers are when the president is explicitly given the power to appoint Cabinet members, with Senate approval.
Legislative—Makes laws (Congress, comprised of the House of Representatives and Senate) Executive—Carries out laws (president, vice president, Cabinet, most federal agencies) Judicial—Evaluates laws (Supreme Court and other courts)