The president's son made a surprise appearance at one hearing.
The House Oversight Committee will vote on whether to hold Hunter Biden in contempt over his refusal to sit for a closed-door deposition with lawmakers.
Hunter Biden business associate tells Oversight Committee
House committees approve resolution to hold Hunter Biden in
Hunter Biden defies House Republicans' subpoena for closed-door
Hunter Biden business associate tells Oversight Committee
Hunter Biden business associate tells Oversight Committee
House Oversight Committee to consider holding Hunter Biden in
House GOP plans first step toward holding Hunter Biden in contempt
House GOP advances Hunter Biden contempt resolution after fiery
House GOP votes to cite Hunter Biden for contempt for defying subpoena
GOP-led committees approve contempt resolution against Hunter