They’re both from a Washington Post article on Nikki Haley’s time in the Trump administration, and I have no reason to doubt the veracity of either.
#1:
Haley talked with an array of experts to prepare for the [UN ambassador] role, but she later wrote that one of her most important pieces of advice came from her son, Nalin, who was then 15 years old and a foreign policy “buff.” He put together a chart split between countries that were and were not friends of the United States. The thinking behind the chart would guide her tenure.
#2:
Other Trump allies, meanwhile, felt that she used her direct line to Trump to undermine his agenda.