I believe this has been the case for him and all of his senior staff since the beginning of his first presidency
See for example this from 2017:
> Despite universal warnings from security experts in and out of government, Donald Trump is apparently continuing to use an insecure, off-the-shelf Android phone
I remember reading news articles on the topic at the time, and finding it egregious how relatively little attention it got, compared to the massive and coordinated ”lock her up” campaign against Hillary Clinton
I believe this has been the case for him and all of his senior staff since the beginning of his first presidency
See for example this from 2017:
> Despite universal warnings from security experts in and out of government, Donald Trump is apparently continuing to use an insecure, off-the-shelf Android phone
http://lieu.house.gov/media-center/in-the-news/congressman-c...
I remember reading news articles on the topic at the time, and finding it egregious how relatively little attention it got, compared to the massive and coordinated ”lock her up” campaign against Hillary Clinton