After months of partisan fighting, President Obama and the Democrats were able to celebrate Wednesday as the Dodd-Frank Wall Street reform bill was signed into law.

Getting in on the festivities, Minnesota Reps. Collin Peterson and Keith Ellison were two of the 400 lawmakers and key players who attended the signing ceremony, which was held in the Ronald Reagan Building auditorium near the White House.

Peterson, chairman of the House Agriculture Committee and part of the conference committee that pieced together the final legislation, was on the stage along with more than a dozen lawmakers, including Rep. Barney Frank and Sen. Chris Dodd, the bill’s architects, as well as House Speaker Nancy Pelosi and Senate Majority Leader Harry Reid.

Ellison, a member of Frank’s Financial Services Committee, had a view from the third row of the auditorium. The bill signing, he said, “was the culmination of many months of work.”

“It was important to me because you’re standing on the sideline watching history being made,” Ellison said afterward. “You can see how an idea evolves into law.”

Before the signing, the Minnesota Democrat posed for pictures with several people, including Elizabeth Warren, a potential director of the consumer protection agency that will be created under the new law. Like the congressmen around him, Ellison snapped away photos on his Blackberry during Obama’s speech and bill signing.

The good ones, he said, will go up on his website.