Guess this isn’t in the Constitution:
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
Each State shall appoint, in such Manner as the Legislature thereof may direct, a Number of Electors, equal to the whole Number of Senators and Representatives to which the State may be entitled in the Congress: but no Senator or Representative, or Person holding an Office of Trust or Profit under the United States, shall be appointed an Elector.
Nope nowhere does this appear in the Constitution. /s
Yes there are Constitutional Amendments to this specific clause starting with the Twelfth, Fourteenth, Fifteenth, Nineteenth, Twentieth, Twenty-second, Twenty-third, Twenty-fourth, Twenty-fifth, and Twenty-sixth. Last I checked the Amendments are part of the living document we all covet so well. That document is called the United States Constitution. So I guess the Electoral College - the group of electors as stated in Article II Section 1 - is not part of the Constitution. Now I could be wrong but then again nahhh.
Statewide (winner take all results) would not be used to give all Electoral Votes to one candidate.
Look at how each Congressional District voted in the last two elections, and you will find that the winner (Obama) might not have been elected. There's a lot of red on that map.