In the 1997 World Series, Cleveland won games two, four, and six by 5, 7, and 3 points respectively. Florida won games one, three, five, and seven by 3, 3, 1, and 1 points respectively. Florida appropriately won the Series because they won more games than Cleveland, even though Cleveland outscored Florida by 44 to 37 overall. Games and elections have rules, and no sensible person would argue with an outcome that follows the rules.
Unfortunately, liberals are neither sensible nor decent; they want the rules rewritten after the fact. I expect them to riot if they win the popular vote but lose the election (they'll riot over any type of loss, but the popular vote excuse will be like the trashy movie in Libya, their justification for the violence that thugs initiate simply because they are thugs). Conversely, if they lose the popular vote but win the election, the split outcome will not concern them at all - hypocrites. Personally, I find the popular vote an interesting footnote to history, but I do not want that statistic considered at all in deciding the election.