She keeps in touch with staff in person, but also through lots of email and texts. When planning events, she will do internet searches to find things she likes and then gives staff photos of what she wants, or draws things, with the Be Best logo being one example. She also uses email, text, phone calls and Signal to keep in touch with her contacts.

(What a coincidence: I use Signal, too. Mrs. Trump, call me.)

How have you seen White House tech evolve under President Trump?

I think moment-to-moment digital coverage of every single thing the president does is new with this White House. President Barack Obama had people tracking his movements through Twitter and beyond, but with this administration, journalists live-tweet, photograph and send video from pool sprays (brief Oval Office events) and Marine One departures, in addition to news conferences.

If I’m on the road, it’s easy for me to tune into a pool spray or speech through someone else’s Periscope live-streaming account, for instance. And when the president is at one of his properties, including the Trump Hotel or Mar-a-Lago, I often lurk on Instagram to see who is hanging out with him.