Experts of the possible

Some public health experts argue it can be done, but the experts in carrying out that kind of thing, the politicians, believe it cannot.

https://www.irishtimes.com/business/covid-19-is-now-a-global-problem-in-search-of-an-irish-solution-1.4464511

Easily forgotten, but that’s a good definition of what a politician is: an expert in what’s possible to do, which may not be what a health expert says we should do.