I don't think she can  afford to play nice.  That's a mistake many liberals make, assuming others will naturally agree with them.   'If we treat them kindly, they will love us and be transformed'.  Not in a 60 minute debate, not with Donald Trump.

Trump needs to be humiliated and if Hillary is wanting to stand as equal with world leaders, she better show some punch.      I can think of dozens of ways to humiliate Trump and show him as ignorant on important topics — truth has power.   Public humiliation does a lot to take the bully out of circulation.  

The question for a significant number of American's is: can Hillary Clinton  be a leader among men? (foreign and domestic).  Cleary many Americans like an 'alpha dog' style of leadership.    Very few people feel Clinton is entittled to anything... she has to fight.

We will see the entire psychodrama played out on stage.  It should be fascinating.