Harris is not without detractors. Some on the left dislike her background as a prosecutor, and repeatedly called her “a cop” during the primary. Some on the right have tried to demean her career by suggesting she was improperly aided by a former boyfriend, former San Francisco Mayor Willie Brown.

But these factions appear to be small. Those on the left who strongly dislike Harris, dislike Biden even more. No vice presidential pick could appease them except for one that risks alienating donors or swing voters, such as Warren (and even Warren might not be enough). And attacking Harris about her past relationship with Brown isn’t universally acceptable on the right. For example, Tomi Lahren was criticized by two of her fellow Fox News personalities last year after she rhetorically asked on Twitter, “[D]id you sleep your way to the top with Willie Brown?” (Lahren soon apologized.)

There is no “Stop Harris” effort afoot, which is important because Joe Biden is running as a unifier, for the country and for his party. A unifier can’t comfortably run alongside a polarizer. Klobuchar, Warren or Whitmer probably wouldn’t become laughingstocks like Sarah Palin or Dan Quayle, or get dumped from the ticket as was George McGovern’s first choice, Thomas Eagleton. But if their selection was greeted with anger by any faction, that would undercut Biden’s persona.