Part of taking the air out of the GOP sails (I sense a naval theme going on here) is to “own” it and try to expose how silly the controversy has become. Like Obama did with his birth certificate sometimes you have to play the bully’s game in order to get past it and on to more pressing matters.
It’s not like Trump and his cult will suddenly accept any evidence as proof and let the matter die. Rational people know just how stupid this whole thing is.
She’s poking the bear and gaining attention to her eventual 2020 run. Now let’s see how she uses this to pivot to her campaign issues.