To claim that is different based on 3 or 4 is minor, the hypocrisy is being scrutinized by some, the hypocrites will of course try to defend themselves by presenting such a minor difference that ignores what is in bold above.
The "Bush did it too card" is another ruse. Bush might have did it, Obama did not do it.
In fact the person in charge of the IRS, where the buck stops, was a Republican who Bush appointed.
It is the IRS's job to police c3 organizations. Do some research, here I'll help
OBTW, things are breaking in this case and it is much uglier than originally thought.