Trump "earned" well over 35 million in 2018, by selling some of his properties as well condo's etc. They showed an whole long list on Facebook about "what". Also he still gains from quite a few other things like his "wine" and "Trump" royalties from buildings and golf courses and visitors and guests/members. Also the use of the "Trump" name for a lot of things and signs on buildings gives him "royalties"
For 2019 he will even get more "if" the "wall" will be approved as royalties from the contractors/builders he "knows". Inthat case he will make billions.
So his present job will be lucrative and can't go bankrupt as fast as in the past.
Congratulations America; you are being used for "suckers"