"The individual citizen has no federal constitutional right to vote for electors for the President of the United States unless and until the state legislature chooses a statewide election as the means to implement its power to appoint members of the Electoral College. U.S. Const., Art. II, §1. This is the source for the statement in McPherson v. Blacker, 146 U.S. 1, 35 (1892), that the State legislature’s power to select the manner for appointing electors is plenary; it may, if it so chooses, select the electors itself, which indeed was the manner used by State legislatures in several States for many years after the Framing of our Constitution. Id., at 28—33. History has now favored the voter, and in each of the several States the citizens themselves vote for Presidential electors. When the state legislature vests the right to vote for President in its people, the right to vote as the legislature has prescribed is fundamental; and one source of its fundamental nature lies in the equal weight accorded to each vote and the equal dignity owed to each voter. The State, of course, after granting the franchise in the special context of Article II, can take back the power to appoint electors. See id., at 35 (“here is no doubt of the right of the legislature to resume the power at any time, for it can neither be taken away nor abdicated”) (quoting S. Rep. No. 395, 43d Cong., 1st Sess.)." http://www.law.cornell.edu/supct/html/00-9...