President Trump drew a stark line Tuesday between his Iran nuclear agreement and his predecessor's, calling former President Barack Obama's 2015 deal "a road to a nuclear weapon" and insisting his own agreement leaves no such opening, warning Iran that any attempt to develop, buy or acquire a nuclear weapon will bring catastrophic retaliation.

President Trump said Tuesday he hadn't been briefed by the FBI about a plot to attack the Sunday night UFC fight at the White House.

The FBI said five people have been arrested in connection with a plot to target Sunday's UFC Freedom 250 event at the White House with explosive-laden drones.

President Trump said Tuesday the U.S. has no obligation to invest money in Iran as part of its peace memorandum, and "the only thing" he cares about is preventing Iran from obtaining a nuclear weapon.