In summary: Trump has about the same approval rating as Obama did at the time, despite a hostile media environment (especially if you take newspapers into account as well) that he actively antagonises.
It isn’t obvious to us that approval ratings are still as important as people would like to think. Consider that Trump and Clinton both went into election night with historically low approval ratings:
And as you can see, Trump’s approval ratings at the time of his election were actually less favourable than they are now; and notably less favourable than those of Clinton. He got elected anyway. While the disdain that many people had for Hillary certainly played an important role, we think this picture won’t look much different with any of the current candidates of the Democratic Party on election day.