>> are major campaigns sitting on opposition research? >> and silver bullet in something that the candidate can drive and break through. my guess is one of them is. i won't say who yet. i think one of them is. most likely seeing the best stuff now. up next, who is poised for the endorsement playoffs of 2016? and later our conversations with rand paul's wife and rissa. we'll be right back. uy. i'm the desktop support tech supervisor. and my customers knowing right when their packages arrive. introducing real-time delivery notifications. learn more at myusps.com ♪ (cell phone rings) where are you? well the squirrels are back in the attic. mom? your dad won't call an exterminator... can i call you back, mom?