Yeah I agree it's moot. You can find all kinds of scumbags making unwanted endorsements. Dennis Rodman, Gary Busey and David Duke endorsed Trump as well. So now, only now, we take exception because of Martin Schkreli? Lol
Also, Schkreli has a particularly good reason not to like Obama -- the DoJ is going after him. He could never support Hillary, although her foundation is the sort that would fund his ventures.