Equality in America

In American electoral processes, votes are of equal value.  However, the number of votes that each voter casts is, explicitly or implicitly, sometimes unequal.  For example, members of the Electoral College vote twice in a general election, as do Democratic Party super-delegates over the course of determining a nominee, i. e. once in a particular state primary, and once at the convention.  Indeed, in the latter case, the vote cast as a delegate is equivalent to the total of votes that an ordinary delegate represents.  Furthermore, a monetary contribution to a candidate can be tanamount to a vote for them.  Now, in principle, citizens are equal before the Law, but, in fact, factors such as race and class sometimes compromise that indifference.  Also, there is plainly no Economic equality in America, with the vague concept "equal opportunity" instantiated either sporadically or superficially.  So, an Empirical study might have difficulty establishing that Equality is a cardinal principle in American life.