I would bet a lot of DS operatives could be investigated/charged with FARA violations, which might lead to additional investigations of criminal conduct.
Manafort's investigation/indictments/sentence sets a new precedent. How many lobbyists work in Washington D.C.? Heck, you could even that imagine that some large media outlets might lobby the government and be working for foreign entities.
The case centers on lobbying work that Craig performed in 2012 for the Russian-backed president of Ukraine, Viktor Yanukovych, while Craig was a partner at the law firm Skadden, Arps, Slate, Meagher & Flom. Craig allegedly never registered as a foreign agent under a U.S. law known as the Foreign Agents Registration Act, or FARA, which requires lobbyists to declare publicly if they represent foreign leaders, governments or their political parties.
FARA violations were only rarely prosecuted until Mueller took aim at Paul Manafort, President Trump's former campaign chairman, for his lobbying work in Ukraine. Manafort, who connected Craig with Yanukovych, has been convicted on numerous bank and tax fraud charges, and was separately accused of FARA violations as well. He was sentenced earlier this month to approximately seven years in prison.
https://pjmedia.com/trending/clinton-obama-attorney-greg-craig-snagged-in-mueller-probe/