It's his own hubris that has found him out. It's not like this case has just dropped on him, he's known about it for ages and he should have planned his finances around losing the case. As it is, he's stubbornly ignored the evidence and now he's not liquid enough to pay the bond so he can appeal the judgement. He could easily have sold some of his properties, if they aren't mortgaged to the hilt already of course, and had the cash sitting in the bank just in case. I suspect he's in hock to all sorts of lenders and there's no wiggle room. If the NY DA goes ahead with collecting then it'll only entail further legal bills for Trump as lenders fight for their share of the profits from his properties. It'd be fantastic if it's his own bravado and belief that he's above the law that bankrupts him.