Here’s some fluff in that article:
“Apple declined to comment on the president’s iPhones. None of them are completely secure and are vulnerable to hackers who could remotely break into the phones themselves.”
Not true. It can only happen if npone acts on a prompt of some sort from an app or website.
All they have to do to prove to the dotard that his phone calls are intercepted is to themselves record ne of them and play it back to him!