Answer:
Ratification of all treaties and presidential appointments
Explanation:
The Senate has the exclusive right to confirm the President's appointments that involve approval, and also to ratify treaties. There are two anomaly to this rule: the House must also approve appointments to the Vice Presidency and any treaty that includes any element of foreign trade. The Senate also tries impeachment cases for federal officials which is assigned to it by the House.
For a legislation to be passed and sent to the President for his signature, both the House and the Senate must pass the same bill by majority vote. If the President votes a bill, they may disregard his veto by moving the bill again in each chamber with at least two-thirds of each body voting in favour.
