Final answer:
The U.S. Senate confirms the President's nominees, requiring a majority vote. Most nominations are confirmed routinely, with rare exceptions where nominations are rejected or not scheduled for a vote.
Step-by-step explanation:
The body that confirms or approves the President's nominees is the United States Senate. In order for a nominee to be confirmed, they must receive a majority vote from the full Senate. Submitting nominees for confirmation is part of the president's appointment powers, and while the majority of these nominations are usually confirmed without much contention, there are instances where nominations are either rejected or not scheduled for a vote by a committee. Such rejections, however, are relatively rare, and historically, presidential cabinet nominees are seldom turned down. Confirmation hearings allow senators to scrutinize nominees, but most appointments proceed routinely, underscoring the Senate's advisory and consent role as outlined in Article II, Section 2 of the Constitution.