The Senate is higher than the President or the House of Representatives.
The Senate has high authority and can try cases of impeachment, which can also dismiss a President for any misconduct.
Congress also writes and debates the laws that govern the United States, and it can override presidential vetoes.
The Senate's advice-and-consent power over treaties and both chambers' important role in amending the Constitution also indicate the legislature's essential role in the nation's representative government.
The Vice President also has power after the president as well as the speaker of the House of Representatives, President Pro tempore of the Senate and Secretary of State.
Additionally, the Twenty-fifth Amendment also authorizes the vice president, together with a majority of the heads of the executive departments, to declare the president "unable to discharge the powers and duties of his office".
The heads of the executive departments are if eligible in the presidential line of succession.
The Constitution grants Congress the sole authority to enact legislation and declare war, the right to confirm or reject many Presidential appointments, and substantial investigative powers.