This far out in the process the other than Trumps lead candidates are simply getting into a pi$$ing contest with a skunk.

They have time to wait and see if the flash in the pans continues or dies of it's own causes.

In the mean time the other candidates can prepare for either scenario, with or without Trump, and save their mortal combat days for when needed.

The American people are not stupid...even though the 2008 and 2014 election results makes one wonder!