4. _All other governmental powers are reserved to the states._ Every power which does not fall within the foregoing three classes belongs to the several states exclusively. This is not only in accordance with the theory of the national constitution as a grant of powers but it is expressly stated in the Tenth Amendment.[98] [Sidenote: Features which are similar in all the states.] =The General Similarity of State Governments.=—No two states, among the forty-eight, are governed alike. A description of state government in Massachusetts would not fit Illinois, much less Idaho or Nevada. On the other hand no two states are governed very differently; in all the essential features they conform to a single type. They all have constitutions; every state has an elective legislature of two chambers; each has an elective governor; and they all have state courts. In all the states there is universal suffrage (save for the exclusion of negroes in the South); the secret ballot is used throughout the country; the same political parties are in existence everywhere from the Atlantic to the Pacific; and the principal laws are essentially the same. The citizen who moves from one state to another finds the difference so slight that it is hardly noticeable. It is not worth while, therefore, to spend any time in studying the points of difference between the government of one state and that of another. State government everywhere has now been reduced to a type which is uniform for all practical purposes. [Sidenote: Organization of the state legislature.] =The State Legislature.=—Every state has a legislature which is the paramount branch of the state government. It makes the laws, levies the state taxes, appropriates money for the management of state administration, and decides all questions of public policy. This legislature is composed of two chambers, which have substantially concurrent lawmaking powers. The upper chamber, commonly called the Senate, is the smaller of the two; its members are elected by counties or senatorial districts, usually for a term of two or four years. The lower chamber, which is variously known as the Assembly, or House of Representatives, or House of Delegates, is much the larger body; its members are also elected from counties or parts of counties. Nominations are made either by conventions or by a primary; the latter is now the more common method except in the Southern states. Sessions of the legislature are held every alternate year except in a few states where they are held annually. [Sidenote: The legislature’s powers.]