Greg Sargent catches this, buried in a Politico article about Darrel Issa, who will chair the Oversight and Government Reform Committee, should the Republicans retake the House, this November (emphasis Sargent):

At a recent speech to Pennsylvania Republicans here, he boasted about what would happen if the GOP wins 39 seats, and he gets the power to subpoena. "That will make all the difference in the world," he told 400 applauding party members during a dinner at the chocolate-themed Hershey Lodge. "I won't use it to have corporate America live in fear that we're going to subpoena everything. I will use it to get the very information that today the White House is either shredding or not producing."

As previously noted, Issa and other Republicans already are excited over the prospect of being able to impeach President Obama, despite there being not even a whiff of a hint of an allegation of anything even in the realm of a valid impeachable offense. But Republicans prove, time and again, that they don't care much for the Constitution. They do, however, care very much for their corporatist owners.

Sargent, on the Politico article:

While that quote stops short of a full-fledged promise to never probe anything corporate America does, it's nonetheless an extraordinary statement: It sounds like a pledge to go easier on big corporations. Dems plan to aggressively highlight this in the days ahead as an additional data-point in making the broader case against Republicans. "Instead of focusing on holding big corporations like British Petroleum accountable, if Issa and Republicans have their way, as Chairman Issa would use subpoenas and an eighty person staff to launch tax payer funded witch hunts against the President," DCCC spokesman Ryan Rudominer emails.

That's the Republican agenda: Protect the corporate nobility, waste time and money on purely partisan witch hunts against Democrats, and ignore the needs of people.