I'm going to guess that the rationale is a combination of:
1) state's rights
2) anti-science
3) a number of people in the administration (very possibly including Trump himself) thinking that the CDC is an example of "the deep state" that conspired to keep him from winning in 2020
But, hey, Joe made groceries more expensive and the administration didn't kiss enough rear on the left side of the Dems to get Kamala elected, so, here we are.
1) state's rights
2) anti-science
3) a number of people in the administration (very possibly including Trump himself) thinking that the CDC is an example of "the deep state" that conspired to keep him from winning in 2020
But, hey, Joe made groceries more expensive and the administration didn't kiss enough rear on the left side of the Dems to get Kamala elected, so, here we are.