I think this is exactly what is going on, on social media the usual screaming about everything Trump but a fair number of posts of the "When are Trump supporters going to wise up?" and "Do you really support Trump doing this?" designed to trigger doubt. Sprinkled in are the "Oh I have always been a R, and always supported Trump but this is it for me..." done with so much drama you know it is a lie.
The best part is when that happens on a post Trump supporters swarm that post. Good watching!
That phrase is a calling card for a person working out of a democrat war room...