The issue is much older than the current US administration : Apple has been listed as participating to PRISM since 2012, and considering the whole opacity of the Patriot Act (and its derivatives), the secret courts in particular, it makes whatever they (or any other US company) might say about their commitment to privacy (when the opponent is the US government) rather irrelevant.

(Personally, I am suspecting that they do try much more than some other companies, but again, the opacity makes it impossible to verify.)