Trump tweets about 6G

Somebody seems to have told US President Donald Trump there’s a mobile industry trade show coming up so he’s using his favoured medium to get involved.
Trump opened a two-part Tweet by saying “I want 5G, and even 6G, technology in the United States as soon as possible.” This laudable wish was presumably prompted by the imminence of Mobile World Congress 2019 and some kind of need to be seen to be aware of it, but it’s not at all clear what Trump expects them to achi