Of course he knows damn well what's going on. I mean come on, he's in NY NY realestate, he knows the corruption game well. I'm sure he's had to deal with it on many levels, corrupt bldg inspectors, corrupt union thugs, corrupt politico's...
And some of it isn't even corruption per se. Some of the problems here are quite legal. Indeed, some of them are mandatory regulations. Laws have been passed, long ago, to require unnecessary expenditures and prevent the kind of savings that Trump is suggesting, to ensure that everyone's palm is greased.