To confirm a cabinet nominee, a simple majority of the Senate is required. This means that if all 100 Senators are present, at least 51 votes are needed for a nominee to be confirmed. In the case of a tie, the Vice President can cast the deciding vote.
The confirmation process is an essential part of the checks and balances in the U.S. government. It allows the Senate to review and approve appointments made by the President for key positions within the executive branch, ensuring that the individuals in these roles are qualified and capable of fulfilling their duties.