The author makes a number of very good points about the Vote for the D and abortions will go down! argument.
He makes several good points, among which are:
Economics is not the only reason listed by women getting abortions
The advent of R governors and consequent abortion-limiting laws was concurrent with reductions in abortion rates
Nations with bigger social safety jets and have lower abortion rates also have what many D pols here in the US would consider draconian restrictions on abortion
While reducing abortion is important, making laws against the practice is also if not more important