Originally the legislatures of each U.S. state selected their two U.S. senators and sent them to Washington. But in 1913, the 17th Amendment to the U.S. Constitution provided for popular election of U.S. senators by state citizens. Each state has its own process and rules around nominating and electing their U.S. senators.
The Senate
The US senate has to confirm the president's choices for ambassador.
No. The Senate never chooses the President. The House of Representatives does, if the nobody win a majority in the electoral college. (See the related question.)
Cabinet secretaries and ambassadors are appointed by the President. However, they must be approved by the US Senate to take effect.
The Senate chooses the Vice President in the case of a tie.
The President chooses the cabinet members and his selection must be confirmed by the US Senate before they take effect.
The President of the United States chooses all members of the Cabinet. They must, however, be approved by the US Senate.
The senate holds all impeachment trials. If two thirds of the senate finds him guilty then the president will be removed from office. Only the House can impeach the President, not the entire Congress.
They are nominated by the President and confirmed by the Senate.
The President can make ambassador appointments only with the "advice and consent of the Senate."
if there is a tie, then the house of representatives chooses te president and the senate chooses the vice-president.
This job or opportunity goes to the President of the United States.