The co-pilot of AirAsia Flight QZ8501 was flying the passenger jet when it crashed last month, officials have said.
It was last week reported that the plane was climbing at a speed "beyond normal" before stalling.
Recovery efforts are still underway following the crash, which left all 162 on board dead.
Indonesian navy divers have located the second black box data recorder from the AirAsia plane that crashed more than two weeks ago, but they have not yet been able to free it from debris on the floor of the Java Sea.
Suryadi Bambang Supriyadi, the operation co-ordinator at the National Search and Rescue Agency, said the cockpit voice recorder was located today just hours after officials announced the data flight recorder had been brought to the surface.
He said it is stuck under heavy wreckage, and divers are working to lift it.
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.