Steve Bannon. Craig Ruttle/AP Photo Manhattan's DA has subpoenaed financial records relating to Steve Bannon, CNN reported. The DA is investigating Bannon's use of funds donated as part of the We Build the Wall campaign. Bannon was pardoned by Donald Trump last month, but he could still face state charges. Visit the Business section of Insider for more stories. Manhattan's district attorney has subpoenaed financial records from Steve Bannon's crowdfunding campaign to build a wall across the US-Mexican border, sources told CNN.