"Presidential Alerts" don't actually originate from the President. They come from FEMA, which selects one of several pre-written messages that fits the current

"Presidential Alerts" don't actually originate from the President. They come from FEMA, which selects one of several pre-written messages that fits the current situation, customizes the text as necessary, and sends it out to the phone carriers. One FEMA official has to actually write the message, and then two others have to sign off on the wording before it can go out. So, no, you're not going to be getting mandatory Trump tweets on your phone.