Ann Althouse notes that
It looks as though Hillary Clinton won the popular vote, but there's little talk about that. I guess we Americans understand the Electoral College. I think it's obvious that if Trump had been going for the popular vote, he would have campaigned in California and New York. There were stores of potential votes that could have been opened up in many places. Clinton too could have drummed up more votes in states she couldn't win or in states she knew she'd win by a wide margin. The popular vote is a stray statistic relating to a game that wasn't played.