GMAT Sentence Correction (SC) | Re: President Clinton spent significant money on the No Child

Just wanted to get my confusion cleared on this one :
Doing this question the second time and again got it wrong.But this time I used a different logic and wanted to clarify that to make sure I never get this wrong again.
I understand ing modifier here is describing the result of action of the previous clause.But how does this -ing modifier applies to the subject "The president" of the previous clause.
Any explanation would be much appreciated.