Ha ha, I just found this old thread. Apparently, Nikki was lying in 2021. Or she just changed her mind?
Chuck Callesto
@ChuckCallesto
BREAKING REPORT: ⚠️ Rumors now emerging that Nikki Haley is mounting an attempt to PUT UP A FIGHT and The Republican National Convention against Trump.
THOUGHTS?
12:50 PM · May 20, 2024
"Rumors now emerging....".

From whom are these "rumors now emerging", Chuck, and why didn't you identify the source of this alleged rumor? Was it from someone affiliated with Haley, or (far more likely) from the Trump supporters who populate your circle of acquaintances/contacts?
If there are such "rumors", by far the most likely sources are Trump-supporters who hate Haley and are angry she hasn't endorsed him. So, they speculate that she's planning on challenging him at the convention.
Hell, the source may be "Chuck Callesto" himself. Start a rumor to give yourself material for a piece about a rumor. Clever.