From CBS News' Fernando Suarez:
GRAND RAPIDS, MICH. -- During a campaign stop in Milbank, South Dakota, former President Bill Clinton told a crowd that "this may be the last day I'm ever involved in a campaign of this kind" according to NBC News. "I thought I was out of politics, 'til Hillary decided to run," Clinton said. "But it has been one of the greatest honors of my life to go around and campaign for her for president."
President Clinton's staff denied that he was referring to the eventual end of his wife's campaign, and said he was merely making the point that the primary season was coming to an end.
Meanwhile, Hillary Clinton is making her first campaign stop at a local diner here. Clinton is expected to hold three events today before heading back to New York where she will hold her "Election Night Celebration" in Manhattan. How celebratory the event will be is up for debate, as she is trailing Barack Obama by double digits in Montana, but is closer in South Dakota.
On her campaign plane last night, Clinton told reporters that she will continue to make the case to superdelegates to support her candidacy. "I don't think there has been a lot of time for reflection," she said. "It's only now that we're finishing these contests that people are going to actually reflect on who is our stronger candidate."
Clinton reminded reporters that the race is not over. "One thing about superdelegates is that they can change their minds."
Watch Bill Clinton below: