Obama tries to rally supporters

Exactly one year since his historic election, President Obama sent a video message today to his grassroots supporters, telling them that they put him in office, thanking them for their dedication since, but warning that they have much more work to do.

"Victory alone was not the change we sought, it was only the chance for us to make that change," he says.

His campaign manager David Plouffe elaborates in an email to Organizing for America accompanying the video: "One year ago today, you made history.We all knew that electing Barack Obama President was only the opportunity to bring about change; that we would all have to keep working to fulfill the promise our victory offered.

"And you've come through -- by making hundreds of thousands of calls to Congress to push health reform forward, by pouring your effort into seemingly insurmountable challenges time and again, and, since January, by building on the power of our campaign to create Organizing for America. And now, with the finish line on health reform in sight, we need your voice more than ever before," Plouffe implores.