Details:
Any process that modulates the frequency, rate or extent of transcription from an RNA polymerase II promoter that results in the commitment of a cell to become an interneuron in the ventral spinal cord. [GO_REF:0000021, GOC:cls, GOC:dgh, GOC:dph, GOC:jid, GOC:mtg_15jun06, PMID:11262869]