He can make all the tweets he wants.
It was her parents who aimed the President at their daughter. They could have stopped this, but they chose not to do so. They wanted this to happen, and it did.
Similarly, they could have sent her out to play in the street. Then complained that she got hit by a car, and so therefore the government isn't properly monitoring speed limits. But they still told her to go play in traffic.
Tom
So the president of the US is too childish to control his anger (ironic) when faced with a mentally ill minor?