The mainstream press has justified its lack of coverage over the Internal Revenue Service targeting of conservative groups because there's been no "smoking gun" tying President Obama to the scandal. This betrays a remarkable, if not willful, failure to understand abuse of power. The political pressure on the IRS to delay or deny tax-exempt status for conservative groups has been obvious to anyone who cares to open his eyes. It did not come from a direct order from the White House, but it didn't have to.

First, some...