Actually the Senate long had the power to approve. Disapproval, in this instance, is really just the lack of approval. The Senate, per Article II, Section 2, (the Nomination Clause) of the US Constitution, was long required to "advise and consent" in the fashion specified in the Section's text reproduced below. However, S. 679, signed into law as Public Law No: 112-166 by President Barack H. Obama on 10 August 2012, has taken advantage of the proviso of the Section that says
"...but the Congress may by law vest the appointment of such inferior officers, as they think proper, in the President alone, in the courts of law, or in the heads of departments." and "streamlined" the traditional approval process for many officers of the U.S.; many observers maintain that this constitutes a violation of the Constitution's "checks and balances" and of the enumeration of powers.
Until the enacting of Public Law 112-166, approval generally required a simple majority vote (51%) of those present in the Senate.
Nomination Clause
"[The President] shall have power, by and with the advice and consent of the Senate, to make treaties, provided two thirds of the Senators present concur; and he shall nominate, and by and with the advice and consent of the Senate, shall appoint ambassadors, other public ministers and consuls, judges of the Supreme Court, and all other officers of the United States, whose appointments are not herein otherwise provided for, and which shall be established by law: but the Congress may by law vest the appointment of such inferior officers, as they think proper, in the President alone, in the courts of law, or in the heads of departments."
The legislative branch does! They also "check" a lot of other things of the president. Just remember that the legislative branch check's the executive.
The Senate ,which is the upper house of the legislative branch, has the power to approve or disapprove high level appointments made by the President.
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Legislative
Legislative
Legislative
Senate can disapprove of appointments made by the President. They usually will have a hearing in which they interview and investigate the appointee before they make their decision of letting the appointment be set or vetoing it.
Legislative
The Upper House of the Legislative Branch (aka US Senate) can reject any high level appointment of the president such as a federal judge, ambassador or cabinet member. (The president is allowed to make certain lower level appointment without approval )
The US President in 1999 was Bill Clinton. He would have made any high level appointments for that year.
President
Legislative Branch because the other one are nay or yay.
States' rights.
congress
the executive branch can veto law made by the legislative branch, but the law can still be passed by a two-thirds majority vote by both houses in the legislative branch.
John Adams is noted for these last hour appointments.