I think it was sort-of a slip, and very revealing. I'm surprised more people haven't picked-up on it. It's in one CBS story, and some Israeli media are repeating it, and that's it. I've already quoted it in the 'quotes' topic here, but I think it deserves more prominent placement.
Trump is an authoritarian who will resort to force, and then more force when things don't work out well. I see no reason not to expect him to use nukes. In this way he has every chance of topping the WWII death toll of 200 million, should he gain power.
The Iran threat was at the Iowa State Fair, 15 Aug 2015. Here are two screenshots of the
CBS story, in case it doesn't stay up, first the head of the story, and then a snip from further down, with the relevant quote highlighted:
-snip-
