[cma]

Musk's clearance was already somewhat restricted because of it and limited things he could see at SpaceX

https://www.cnbc.com/2019/03/07/elon-musk-asks-pentagon-for-...

After he did a $1 million lottery a day only for Registered Republicans, to bypass pay for registration laws, in a swing state during the election.. I'm guessing any leftovers of that will be lifted.

[cma]

More recent sources, lawyers advised him not to try for higher clearance because of the drug use: https://www.thedailybeast.com/elon-musk-denied-access-to-spa...