What goes on the chopping block — research into cancer or Alzheimer’s? A Zika vaccine or a treatment for superbugs? Health groups say President Donald Trump’s proposal to slash funds for the nation’s engine of biomedical research would be devastating for patients with all kinds of diseases — and for jobs. “It is possible that the next cure for some cancer is sitting there waiting to be discovered, and it won’t get to the table,” said Dr. Georges Benjamin, executive director of the American Public Health Association. In his budget blueprint Thursday, Trump called for a cut of $5.8 billion from the National Institutes of Health. That’s a staggering 18 percent drop for the $32 billion agency that funds much of the nation’s research into what causes different diseases and what it will take to treat them. Watch: White House 2018 Budget Draws Mixed Reactions It comes despite Trump’s recent …