Remember back when the Bush Administration was accused of sitting on a study on charter school data? It was good copy but not how the process works. Now, roles reversed, it’s the Obama Administration being accused of tanking the recent study on DC vouchers. In both cases the firewall between IES and the political team in the Department seems to have worked. That’s a good news story. But don’t take my word for it, Bush IES director Russ Whitehurst defends Secretary Duncan here.