“Congressional investigators are fuming over revelations that the Internal Revenue Service has lost a trove of emails to and from a central figure in the agency’s tea party controversy.” That’s the opening sentence of the Associated Press story on the IRS’s claim that it lost an unknown number of emails over two years relating to the agency’s alleged targeting of political groups hostile to the president. But note how the AP casts the story: The investigators — Republican lawmakers — are outraged.Is it really so hard to imagine that if this were a Republican administration, the story wouldn’t be the frustration of partisan critics of the president?