Mack is charged with sex trafficking and other crimes in connection with the secret group Nxivm, which prosecutors call a cult.
Trump's comments came shortly after Iranian president Hassan Rouhani warned of "severe consequences" if the administration "betrays the deal."
Police said Monday afternoon's van attack in downtown Toronto "definitely looked deliberate," but downplayed any potential connection to terrorism.
A defense lawyer told the jury the case is about a "blind 80-year-old man with a successful career facing absolute ruin."
In a 5-4 vote, the court refused to revive lawsuits that sought to hold Arab Bank responsible for attacks against foreign nationals in the Middle East.