Earlier quoted context omitted.
Also: https://www.justice.gov/usao-dc/pr/roger-stone-found-guilty-... > Stone was found guilty of obstruction of a congressional investigation, five counts of making false statements to Congress, and tampering with a witness
And then pardoned by Trump
Maybe the solution to all this mess is for Congress to finally flex the Sergeant-at-Arms position. While there is a delegation to the Department of Justice for efficiency sake, there technically isn't anything preventing the Legislature from doing it's own footwork.