It appears that an unwitting leaker outed herself on the Democrat “news” network MSNBC. Evelyn Farkas, the former Obama administration deputy secretary of defense, admitted it seems that she leaked a lot of Trump/Russia material to the Hill. She also admitted to making sure the information would not be discovered as to “how they know what they know.”
I take that to mean that they may have been engaged in spying, and that’s illegal. If they were following the Russian diplomat’s, then why does it matter covering up how they arrived at their information?