Actually it was higher back then and for a guy who only won by 78000 votes he cant afford to lose any support.
As usual you are wrong. Gallup had him at 35 the week before the election. LOL https://www.realclearpolitics.com/epolls/other/trump_favorableunfavorable-5493.html
As usual you are wrong.It was 42% Nov 9-13 lol https://news.gallup.com/poll/197576/trump-favorability-trails-presidents-elect.aspx