I guess if he means inflexible. MSNBC via Weasel Zippers:

In a speech that the Obama campaign says will be the first of a series of addresses by the vice president framing the general election, Joe Biden today delivers remarks at a United Auto Workers town hall in Toledo, OH at 11:00 am ET. This is the first major campaign speech by either member of the ticket that didn’t have a fundraising invite connected to it.

According to excerpts released by the campaign, Biden will focus on — you guessed it — the auto bailout that Obama supported (and Romney didn’t). “The president didn’t flinch. This man has a spine of steel,” he’s expected to say. “He knew rescuing the industry wasn’t popular. He knew he was taking a chance. But he believed. He said, we are not going to give up on a million jobs, and the iconic industry America invented. Not without a fight. We all want a president with the courage of his convictions. Well, folks, we have one. He made the tough call. And the verdict is in: President Obama was right and his critics were dead wrong.

Or maybe that’s a nice way of saying he’s got a stick up his ass? I imagine there will be a lot of humorous Twitter reax on this one.