The Constitution of the U.S. clearly states that the Senate and the President hold the necessary authority to appoint governmental officers to hold a position in the administration. Nevertheless, this co-relation in power has changed drastically in history.
For the past several decades, the Senate is the only authority able to reject a cabinet pick made by a president-elect or a president in office. How has the Senate played its role over the years?
Interestingly, for the first 10 years of the Senate as we know it, there was a long-standing courtesy between the Senate and the President regarding cabinet picks. Back in the XIX Century, the Senate was expected to check all candidates for federal jobs. This began to impact the federal employment acceptance rate, given that the Senate is part of political parties.