THE question of actually “legitimacy” rises it’s head one more time……
Clinton will finish with widest popular vote margin among Electoral College losers, excluding years (1824, 1876) where not all states voted.

Votes received by GOP presidential candidate in general election:
2008 - 59.9 million
2012 - 60.9 million
2016 - 61.2 million (est.)

Votes received by Democratic presidential candidate in general election:
2008 - 69.4 million
2012 - 65.9 million
2016 - 63.4 million (est.)