He's making the same mistake Obama did, assuming his win corresponded to a "mandate" from the people.  Which it doesn't, he didn't win by nearly a big enough margin; he didn't win the popular vote at all.  And in fact, to say he "won" is not accurate.  A more accurate statement would be that Clinton lost.  The election was hers to take, she just didn't do what it took to connect with the great, white, scared middle of America.  And Trump played on that fear like an accomplished violinist.