To make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this Constitution in the government of the United States, or in any department or officer thereof. SEC. 9.--The migration or importation of such persons, as any of the States now existing shall think proper to admit, shall not be prohibited by the Congress prior to the year one thousand eight hundred and eight; but a tax, or duty, may be imposed on such importation, not exceeding ten dollars for each person. The privilege of the writ of _habeas corpus_ shall not be suspended, unless when in cases of rebellion or invasion the public safety may require it. No bill of attainder or _ex post facto_ law shall be passed. No capitation or other direct tax shall be laid, unless in proportion to the census, or enumeration, hereinbefore directed to be taken. No tax or duty shall be laid on articles exported from any State. No preference shall be given by any regulation of commerce or revenue to the ports of one State over those of another; nor shall vessels bound to or from one State be obliged to enter, clear, or pay duties, in another. No money shall be drawn from the treasury but in consequence of appropriations made by law; and a regular statement and account of the receipts and expenditures of all public money shall be published from time to time. No title of nobility shall be granted by the United States; and no person holding any office of profit or trust under them shall, without the consent of the Congress, accept of any present, emolument, office, or title of any kind whatever, from any king, prince, or foreign state. SEC. 10.--No state shall enter into any treaty, alliance, or confederation; grant letters of marque and reprisal; coin money; emit bills of credit; make any thing but gold and silver coin a tender in payment of debts; pass any bill of attainder, _ex post facto_ law, or law impairing the obligation of contracts; or grant any title of nobility. No State shall, without the consent of the Congress, lay any imposts or duties on imports or exports, except what may be absolutely necessary for executing its inspection laws; and the net produce of all duties and imposts laid by any State on imports or exports, shall be for the use of the treasury of the United States; and all such laws shall be subject to the revision and control of the Congress. No State shall, without the consent of Congress, lay any duty of tonnage, keep troops or ships of war in time of peace, enter into any agreement or compact with another State or with a foreign power, or engage in war, unless actually invaded, or in such imminent danger as will not admit of delay. ARTICLE II. SECTION 1.--The executive power shall be vested in a President of the United States of America. He shall hold his office during the term of four years, and together with the Vice-president, chosen for the same term, be elected as follows:--