Sara is hated and savaged by the GOPe. By having her on the stage, Trump is sending a signal. If you hate the GOPe, I’m your man.
That’s all it is. Simple as that.
I’m finding, too, that loyalty (both ways) means a lot to Trump. This was a risk, but he weighed the risks and the loyalty to Sarah, especially in light of how she was treated by the media, the Dems and the GOPe and wants to give her the opportunity to be involved with something big again. I’d like to see him involve General Petraeus in the future if he would be willing, to give Petreaus the opportunity to be involved with the movement and clear his name at the same time. Would give Trump military advisor as part of his camp.
Yes it’s an endorsement, not a running mate.