A few years ago I was honored with the Carl Sagan Prize for Science Popularization, a thrill because I admired his willingness & ability to communicate science to the public at a time when scientists weren't encouraged to speak out or rewarded for doing so.
But he also said things that, even today, resonate deeply in our present political crises. Here's one of those things relevant to today's Republican party.
"Once you give a charlatan power over you, you almost never get it back.” Carl Sagan