Let's get this factually correct at least:
USAF awarded United Launch Alliance (ULA), a partnership between Boeing and Lockheed, a no-bid contract on 36 rockets. Of those, some will be an Atlas-V (Lockheed Made) , and some will be a Delta-IV (Boeing made). Only the Atlas uses the Russian made Engine (called an RD-180 over here), the rest of that rocket is made here. The Delta uses an different engine (RS-68), which is made here.
This injunction would prevent buying only engines and only for the Atlas first stage.