"The real question is: what will House Republicans do? First, House Republicans should immediately demand that Jack Smith present himself for a transcribed interview before the Judiciary Committee in the next 15 days," Gaetz told US media.
Lawmakers should subpoena Smith if he refuses to comply with their request for an interview, and hold Smith in criminal contempt if he refuses to comply with it, Gaetz said.
Congress should also be prepared to impeach US Attorney General Merrick Garland if he refuses to enforce the criminal contempt charge, Gaetz added.
Earlier this week, a grand jury indicted Trump on four charges linked to his alleged role in efforts to overturn the US presidential election. Trump is set to make a court appearance on the matter Thursday.
The charges come amid an investigation by lawmakers into potential weaponization of the US government and its justice system against political opponents. Trump has repeatedly accused the Biden administration of weaponizing the Justice Department against him.