Here she is as Kimberly Noem 2 months ago:
Here she was halfway through her transformation, in 2021, when the changes were already being noticed:
https://weightandskin.com/kristi-noem-plastic-surgery/
And here she was back when she was just elected as governor in 2018:
I have to say she looks good in all three stages, but I prefer her fresh look at the beginning.
(IMO, she never could look as garish as Guilfoyle does.)