The Washington, D.C., mayor and city council have been subpoenaed as part of a federal lobbying probe - WaPo
https://www.washingtonpost.com/local/city-council-mayor-subpoenaed-in-federal-probe-of-official/2019/03/11/413a49c0-43ce-11e9-94ab-d2dda3c0df52_story.html?noredirect=on