Reuters/Jane Rosenberg
- Longtime personal assistant Rhona Graff took the stand Friday in Trump's NY hush-money trial.
- On cross, a defense lawyer asked multiple questions about Trump "multi-tasking" while signing checks.
- Trump may argue he was distracted when he signed the only allegedly-falsified records he personally handled.
A longtime personal assistant to Donald Trump was compelled by subpoena to take the stand against him in his New York hush-money trial Friday — but she may have helped her former boss more than harmed him.