Re: Magic which will happen will be determined at a future date
Presumably more due to their possible involvement in the US elections, rather than brexit, and the UK media has reported on them.
Not on the subject that they have ended up within the scope of the Russian Involvement inquiry and some of their communications are being looked into.
"why is Robert Mueller investigating certain Cambridge Analytica communications"
Correct. However, it is quite interesting that the UK media has not picked up this particular angle - the Mueller + Analitica one. In fact, prior to one of the US congressmen dropping this by mistake in the exchanges around the Nunnes memo this was not reported ANYWHERE.