republicans want to turn the attention of the hearings to the biden family and alleged efforts by democrats in 2016 to dig up dirt on candidate trump via ukraine. and the biggest you mentioned, emerging as a central figure due to business dealings. and the ukrainian american who served the dnc and another familiar name, nelly ohr who worked on the opposition fusion gps which produce the trump dossier. republicans are requesting several officials who were questions behind closed doors including tim morrison, former ukraine envoy kurt voelker and state department official david hail. and the whistleblower along with anonymous sources referenced in their complaint also on that witness wish list