Maybe Jeb is telling his fellow-travelers that he’s going to endorse Trump in an effort to sink Trump; and that Cruz, Rubio and Kasich should not be alarmed.
Now that would be evil, wouldn't it?
If he did endorse trump the only thing I can see trump supporters spinning it is: “He’s jumping on the bandwagon so he doesn’t get run over” Even though you can see the tire tracks on his forehead from everyone’s bandwagon.
If he endorses anyone else: “See they are GOPe stooges”