Can't find the clip but Obama (in an interview) says something like: "it would almost be easier if someone else would be President and I could be the voice talking to them through an earpiece"
You can "turn someone off" at any moment.
Jim Watkins also got one recently.
Odd that Nethanyhu and Kim Watkins got a pacemaker basically at the same time. Sauce is notables from 2 or 3 days back. Too lazy to find it but if you keep asking someone will link it.