Who has "brain damage?"

DaTech Guy tips his hat to Karl Rove's comment about Hillary Clinton's health.
Consider: You want to interject an issue into the political conversation (Hillary’s Health & her concussion) when you are facing a press that is not only universally against you but dedicated to protecting the target of your attack.
You give them a statement designed to get your foes to charge like a bull:

Thirty days in the hospital? And when she reappears, she’s wearing glasses that are only for people who have traumatic brain injury? We need to know what’s up with that.

The reaction was all that he could hope for people jumped all over him Rove game them a full news cycle of attacks on him, the Today Show, CNN and the NBC nightly news.
That's the difference that it makes.