I want to make a reference to Chertoff's statements; "Make the lie big, make it simple, keep saying it, and eventually they will believe it." - Adolf Hitler
I don't believe Chertoff is Hitler, but what an outrageous statement "Trump voter fraud commission's request for data could harm national security..." When truth becomes abnormal, our country is in serious trouble. 
There is absolutely nothing wrong with states updating, verifying, their voter rolls. It's their constitutional and moral duty to do so.