Don’t know if this story is accurate. What I can relay is one night watching Watch What Happens Live on Bravo (Ok! Sue me! Guilty pleasure) the actor Tony Goldwyn was a guest and he’d traveled with Hillary on her campaign. He was asked what was one of the facts about Hillary that may surprise people. After he thought for a moment he said, “oh, that she really loves a good martini at the end of her day!”
https://m.youtube.com/watch?v=-NaeihDQDYk
That was interesting. A dry martini packs a punch. If she stopped at one, no problem. But nothing we have heard and seen indicates moderation.