Do the Democrats have a secret weapon?

Boy! I’m scared. I used to be a Republican, but either I grew out of it, or they just went insane along the way. That first debate of the season was nuts.
Did God direct you to begin your Presidency with any particular act; and they all answered that!
Hillary is not a viable candidate, and has me looking more deeply into Trump.
Could it be the Democrats have a secret weapon they are saving for late in the race? Could it be Hillary is posturing so they aim their plans of attack in entirely the wrong direction?
Does anyone have any theories which could set my mind at ease?