It's a bit hard to know which of the Trump sycophants and cultists is going to kill the most people and destroy the most science, but RFK Jr. has got to be close to the top.
https://www.pbs.org/newshour/health/rfk-jr-pulls-funding-for-vaccines-being-developed-to-fight-respiratory-viruses
https://www.pbs.org/newshour/health/rfk-jr-pulls-funding-for-vaccines-being-developed-to-fight-respiratory-viruses