Hilliary has her trustworthiness issues. Now, it appears some of the rats on Jeb's prospective ship of state are jumping ship. What say you; much ado about nothing or signs of a weakening campaign? Also, he's gone from second place to third place in the polling.

...candidate except for Trump.  If it comes down to Jeb!! and Trump, Jeb's ads could finally expose Trump as a populist windbag with no plan for the country except generalities.

That could be, but you are not taking into account the Koch-funded Superpacs that will be looking at an infuson of as much as $887 million or more (per David Koch). No doubt some of the also rans at the bottom of the favorability heap are hoping for a shot at being the prime Koch-sucker

Put in the same room, Jeb looks weak and Trump looks strong in comparison. Jeb is going to have to "man up" if he is going to win the nomination. Right now Jeb looks "affable" not exactly a quality that people look for in a leader.

Walker has been supported by Koch money in his Wisconsin dealings, and I think he's their go-to-guy at the moment, though if he doesn't pick up steam that could change very quickly. Not certain how his openness to a wall separating us from Canada is going to pick up any votes for him. A lot of American's, on the board, go there for their drugs and medical services, and I haven't heard of any hoards of Canadians coming our way. Perhaps he got that idea from Game of Thrones!  

I discount Walker because I simply do not beleive he has the staying power, the cachet or even the support.

Koch money will cease to flow once a more viable contender manifests him or herself.. I have not ruled out Fiorina being the big winner in the Koch cashflow contest. In a conservative somewhat homophobic crowd, you can't deny she's the most logical Koch sucker.