If we look into the constitutions of the several States, we find that, notwithstanding the emphatical and, in some instances, the unqualified terms in which this axiom has been laid down, there is not a single instance in which the several departments of power have been kept absolutely separate and distinct. New Hampshire, whose constitution was the last formed, seems to have been fully aware of the impossibility and inexpediency of avoiding any mixture whatever of these departments, and has qualified the doctrine by declaring “that the legislative, executive, and judiciary powers ought to be kept as separate from, and independent of, each other AS THE NATURE OF A FREE GOVERNMENT WILL ADMIT; OR AS IS CONSISTENT WITH THAT CHAIN OF CONNECTION THAT BINDS THE WHOLE FABRIC OF THE CONSTITUTION IN ONE INDISSOLUBLE BOND OF UNITY AND AMITY. “ Her constitution accordingly mixes these departments in several respects. The Senate, which is a branch of the legislative department, is also a judicial tribunal for the trial of impeachments. The President, who is the head of the executive department, is the presiding member also of the Senate; and, besides an equal vote in all cases, has a casting vote in case of a tie. The executive head is himself eventually elective every year by the legislative department, and his council is every year chosen by and from the members of the same department. Several of the officers of state are also appointed by the legislature. And the members of the judiciary department are appointed by the executive department. The constitution of Massachusetts has observed a sufficient though less pointed caution, in expressing this fundamental article of liberty. It declares “that the legislative department shall never exercise the executive and judicial powers, or either of them; the executive shall never exercise the legislative and judicial powers, or either of them; the judicial shall never exercise the legislative and executive powers, or either of them. “ This declaration corresponds precisely with the doctrine of Montesquieu, as it has been explained, and is not in a single point violated by the plan of the convention. It goes no farther than to prohibit any one of the entire departments from exercising the powers of another department. In the very Constitution to which it is prefixed, a partial mixture of powers has been admitted. The executive magistrate has a qualified negative on the legislative body, and the Senate, which is a part of the legislature, is a court of impeachment for members both of the executive and judiciary departments. The members of the judiciary department, again, are appointable by the executive department, and removable by the same authority on the address of the two legislative branches.