I think that Nikki only did this as a publicity stunt to get her name back out in the public. She knew she had NO CHANCE of becoming the Republican Nominee. This was only to try to draw votes away from Trump.
Didn't Trump appoint her US ambassador to the United Nations under his administration? My goodness how forgetful we become and knowing full well she didn't have a snowball's chance in an iron producing smelter of being nominated by the voters.
I think she is nothing more than a never Trumper with little credibility and definitely no sense of gratitude..