This is essentially on Issa with Grassley's support. Remember, Grassley is the "Ranking member" and really cannot do anything but whine and write letters that are ignored. The Senate will not delve very deeply into this mess as long as the committee is controlled by the Dems.
The Republican congress failed to hold Clinton accountable for his crimes, unless you count that joke of an impeachment.
The threat of racial unrest will keep Obama/Holder from facing any real punishment as well.