Make it all senior government personnel (SES or higher, including things the Prez and Cabinet people). Blind trust that's really, really out of their control, or divest. Or, to be extra careful, allow them to muck about within retirement vehicles like IRA and 401K as they're really quite small compared to what's sloshing about today in DC.
Military too, field grade or higher. Also contractors filling any similar-grade positions. And all procurement officers/staff.
Military too, field grade or higher. Also contractors filling any similar-grade positions. And all procurement officers/staff.