Palin didn’t call anyone a “dog.” She used a standard metaphorical expression.
The headline is a lie.
Trump Meets with Sessions, Palin after Iran-Deal Rally
Excerpt:
As Trump left the rally on the West Lawn of the Capitol, Trump ascended the steps, flanked by a phalanx of body guards, and was met halfway up by Sessions.
The two then proceeded to Sessions’s hideaway for a closed-door chat. Just before 3 p.m., Sarah Palin, who was also speaking at the rally, entered the room. Shortly thereafter, Sessions emerged.