Tom Hayden, the liberal activist best known for his work in the 60's, when he helped found Students for a Democratic Society, was once pretty enthusiastic about Barack Obama. Back in March of 2008 he had the first byline on an article in the Nation -- also attributed to Bill Fletcher Jr., Danny Glover and Barbara Ehrenreich -- that began, "All American progressives should unite for Barack Obama."Hayden's fanboy endorsement was an embarrassment of giddy projection even at the time. But there were a lot of people who were caught up in campaign fever on all sides so he wasn't unique. To have a fit and claim "betrayal" because Obama is fulfilling his campaign promise to send more troops to Afghanistan, however, is just puerile.Now, though, after the president announced his decision to send an additional 30,00 troops to fight in Afghanistan, Hayden's had enough. His latest piece for the Nation begins with a very different sentiment than the one he expressed not two years ago. Now, Hayden says, "It's time to strip the Obama sticker off my car."