All members of the Armed Services Committee (ASC) were asked if they, too, had contact with the Russians, in their capacity in the ASC.  20 replied.  All answered "No".  Six refused to answer, neither confirming, nor denying contact.
One of the ASC members, Sen. McCaskill, went on to elaborate that such contacts were not appropriate, as such contact should be conducted through the Foreign Relations Committee.
Is he lying, again?
Certainly looks possible.