Reminder AG Eric Holder was held in criminal and civil contempt and it was decided to take no action:

After the House voted to find Holder in contempt of Congress, Deputy Attorney General James Cole, Holder’s No. 2, issued a letter to the House stating: “The department will not bring the congressional contempt citation before a grand jury or take any other action to prosecute the Attorney General.”

https://www.dailysignal.com/2019/05/07/as-democrats-threaten-barr-a-look-back-at-what-happened-with-holders-contempt-charge/