I looked and you cut off part of the headline.
You forgot this: “The Five” - that would make it much more clear.
From this linked blog...
The Establishment has no valid choice.....
.......their only viable option is to reluctantly get behind Cruz rather than suffering the existential threat of a Trump nomination.
LOL! Looks like they already have! Midge McConnell has loaned out his top Chamber of Commerce affiliated attorney to head the latest pro-Cruz PAC. Maybe this is where some of the dirty tricks are coming from.