Hunter Biden’s surprise appearance at a House Oversight Committee hearing debating whether to hold him in contempt of Congress served as a source of anger and frustration for House Republicans and a launch pad for House Democrats to strike back at formerly subpoenaed GOP members.

Hunter Biden, the son of President Joe Biden, surprised members by showing up for the discussion on whether to hold him in contempt for failing to comply with a subpoena to sit for a deposition as part of the committee’s impeachment inquiry into Joe Biden. The day he was set to go before the committee, the younger Biden held a press conference outside of the Capitol and called for a public hearing.