A new study from the University of Michigan:
Results: Across all nine presidential administrations, infant mortality rates were below trend when the President was a Democrat and above trend when the President was a Republican. This was true for overall, neonatal, and postneonatal mortality, with effects larger for postneonatal compared to neonatal mortality rates. Regression estimates show that, relative to trend, Republican administrations were characterized by infant mortality rates that were, on average, three percent higher than Democratic administrations.
My conclusion: we should be very wary of academia. What's yours?