When Joseph Kennedy III presented the Democratic Party response to Donald Trump’s State of the Union speech, journalists mentioned that the two men had several things in common such as being teetotalers.  As a non-drinking undergraduate at Stanford, Kennedy’s nickname was the milkman.  Among other notable American politicians who are teetotalers: Joe Biden, George W. Bush, and the devout Mormon, Mitt Romney.  Bill Clinton has become a vegan.  Don’t know if he has given up alcohol.