A defense lawyer told the jury that the case is about a "blind 80-year-old man with a successful career facing absolute ruin."
He's accused of over-prescribing pain pills for profit, but is still allowed to practice medicine.
Mack is charged with sex trafficking and other crimes in connection with the secret group Nxivm, which prosecutors call a cult.
The public displays of affection between the powerful pair included cheek smooching, hand-holding and even a delicate dandruff dust-off.
Trump's comments came shortly after Iranian president Hassan Rouhani warned of "severe consequences" if the administration "betrays the deal."