The president nominates, but the Senate decides. This phrase from the Constitution is why a president cannot simply install judges, ambassadors, and cabinet officers without the Senate's approval.
Advice and consent is the Senate's constitutional power to approve or reject the president's nominations and treaties. The president proposes; the Senate disposes. The phrase appears in Article II, which says the president acts by and with the advice and consent of the Senate.
It is a core check on executive power. The president appoints Supreme Court justices, federal judges, ambassadors, and top officials, but only with Senate approval. For treaties, the bar is even higher: a two-thirds Senate vote to ratify.
The confirmation process is where this power lives. Senate hearings, especially for Supreme Court nominees, have become major national events, where the chamber scrutinizes a nominee before voting to confirm or reject.
It can be a powerful brake or a partisan weapon. The Senate has used, and withheld, its consent in ways that shape the courts and government for decades, sometimes refusing even to consider a nominee, turning advice and consent into a tool of raw political leverage.
