As for Kelly I'm not buying that he never knew about Porter's issues. He obviously cared less that he couldn't get a security clearance.
Whatever Kelly's politics, you'd think as a former general, he'd be concerned about doing things properly. And that he'd also be concerned because so many White House staffers are having trouble getting security clearances.
You'd also think the people who weren't getting the clearances would wonder why. Wouldn't they ask what the holdup was, and try to do whatever was necessary to clear the matter up?