Ann Althouse blogs about the IRS going after 501(c)4 groups of a particular ilk.
The unequal, politically skewed enforcement of a law is a far more serious problem than the level of harshness of a neutrally enforced law. We can disagree about what the tax laws should be and how strictly or harshly they should be enforced, but everyone knows it is fundamentally wrong to vary the degree of enforcement, selecting victims by their politics. If government cannot be trusted to avoid that fundamental wrong, it cannot be trusted with any power at all. It would be better to wipe the tax code clean and rebuild it without any complicated corners where government officials — great or small — have a place to do their dirty work.