I think the acquisition will go through, whether there is a legitimate issue here or not.
Big pharma develops very little for themselves, and blocking acquisitions would destroy these companies. And of course they have a huge, powerful lobby. Plus they have the advantage that almost all big pharmas employ huge numbers of people in Democratic states like Illinois, California, NJ, Connecticut, and New York -- so the politicians that would normally be opposed to this (Democrats) will keep their noses out of it.
OT but I think one of the main reasons why big pharma has never really felt the political hammer is for that very reason.
