congress' role isnt to investigate and issue indictments or criminal charges. their job is oversight. the most they can do is make a criminal referral to the DOJ.
if all the crossfire hurricane coup leaders are now being brought before congress to explain themselves, its because the durham investigation is complete. grand jury's have been convened and indictments are ready to go. i wouldnt be surprised if we see some major decalss/indictments made public in the days leading up to these traitor's testimonies. putting them on the hot seat under oath for the whole country to see.