The complaint claims the hiring of foreign nationals may be considered foreign intervention in the election. FEC rules prohibit foreign nationals without permanent resident status from directly or indirectly participating in political campaigns or making political contributions.
This complaint is from the same group who recently filed an FEC complaint against Rep. Alexandria Ocasio-Cortez claiming she may have illegally funneled money through her PAC to her boyfriend.
https://hotair.com/archives/2019/03/23/sanders-campaign-hit-complaint-illegal-alien-staffers/
These people are STOOPID.