She left him because he's broke???

I have to agree.  He made his bed now let him lie in it.  It's called Karma and karma's a bitch and can kick ya in the butt at the least possible moment and he's found that one out for himself.  Too bad for him.  He owes back child support then he needs to pay up.  It's not your fault that he doesn't know how to budget and owes more money than he makes.  He'll need to figure out a way to pay it back.  My ex left me for a tramp he works with and he's whining now because when we sell the house we will have to take a loss due to the market, he's whining around he has no money to do this, I told him tough you'll have to find a way to make it work, it's in our divorce papers that he pay the loss.  So don't back down now.  That money goes to support your daughter and if you let him out of it, that's cheating your daughter out of what's hers.  Plus I don't think the child support enforcement agency will let him out of it, at least the one in our State won't.  They will take his tax refund if he hasn't paid it by them.  It's court ordered support and he has to pay it, no matter if he has money or not.  So stick to your guns!! :)  Good luck.

Oh no...don't you dare. He made his bed now let him lay in it . It was not your choice for him to do what he did. But you were awarded the money in court.
This is a good example for the things we do coming back to bite us.
If he can't afford it then he needs to file in court to get it reduced or get an additional job so he can afford it. Not your problem honey!
Hang tough...I really feel sorry for him( not).