The only reason Grassley wants the info is so that he can make sure everything implicating the Ruling Class is Covered Up. I see no reason whatsoever to believe anything substantial will become of this Dog and Pony show other than another Cover Up.
Who cares why he wants the files. If he is entitled then he should obtain them. At least he doesn’t use Fraud. Grassley isn’t perfect but has been the best Sen. with Trump’s back. something is starting. Let hope and assist when possible.