Republican Senator Ron Johnson, who is reviewing Crossfire Hurricane, the FBI operation that investigated the Trump campaign for Russian collusion, has been authorized to subpoena 35 Obama administration officials and many documents.
GOP votes to give chairman authority to subpoena Obama officials
The Senate Homeland Security and Governmental Affairs Committee voted on Thursday to grant Chairman Ron Johnson (R-Wis.) broad subpoena authority as part of a probe stemming from the Obama administration.