The National Education Association’s New Hampshire branch, the state’s largest education & public employee union, endorsed Hillary Clinton today, as well as the United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry.

Some big unions have eagerly endorsed her already. The American Federation of Teachers endorsed her in July and International Association of Machinists endorsed her in mid-August.

It’s moments like this you almost feel sympathy for Hillary’s Democratic rivals like Martin O’Malley. Sure, he’s a long-shot, but he hasn’t even had a chance to get onto a debate stage with Hillary and Bernie Sanders. Democrats won’t hold a debate until October 13. Didn’t any of these unions want to at least see how their preferred candidate performs on the debate stage? Or how she handles her October 22 appearance before the Benghazi panel on Capitol Hill?

Will any of these unions reconsider their endorsement if Joe Biden jumps into the race? Endorse both of them?