I'm not sure about the most recent successful charge, but this is one of the charges used against James Comey: https://en.wikipedia.org/wiki/Prosecution_of_Jame

I'm not sure about the most recent successful charge, but this is one of the charges used against James Comey: https://en.wikipedia.org/wiki/Prosecution_of_James_Comey https://en.wikipedia.org/wiki/Prosecution_of_James_Comey Here's a 2018 article listing some prosecutions: https://www.nbcnews.com/politics/congress/5-people-who-lied-congress-what-happened-them-n941936 https://www.nbcnews.com/politics/congress/5-people-who-lied-... Because it's the DoJ prosecuting, I think it's uncommon for the government to prosecute administration witnesses, even from previous administrations. Once upon a time Congress would prosecute and impose punishment itself: https://en.wikipedia.org/wiki/Contempt_of_Congress#Inherent_contempt https://en.wikipedia.org/wiki/Contempt_of_Congress#Inherent_...