Chelsea Clinton responds to Trump (tweet):

[karynnj]

26. Perfect response - love the polite tone as she skewers him on his strange reference to selling out

the country.

Remember when he spoke of how any Republican running would consider Ivanka for the cabinet? He even gave her as the only example of a woman he would put in the cabinet, apparently not knowing he couldn't. http://www.cnn.com/2016/08/05/politics/clinton-trump-ivanka-cabinet/index.html

I suspect that he thinks he can spin Ivanka sitting in for him - rather than someone from his cabinet - as an attack on someone he sees as very popular. As seen by thinking she would be a popularly acclaimed choice as a cabinet member - not knowing that the law forbids that - he stills feels that everyone will see her as exceptionally qualified.

One thing Chelsea, who is someone who could be included in a future administration under a President she is not related to, makes clear is that it is NOT a matter of credentials. This was an international summit of world leaders. Ivanka could substitute for Melania at a ceremonial event -- and Chelsea could have done that as well. We are not a monarchy, there is no throne, and the Presidential offspring are not the heirs.