Clinton advisers are split on when Hillary Clinton should launch her campaign

This time eight years ago, when she first ran for president, Hillary Clinton was already officially a candidate.

"I'm in it to win it," she said in a YouTube video posted on January 21, 2007.

But even though a second Hillary Clinton for president campaign is all but certain, she and those close to her are debating when she should jump in the race, potentially delaying her entry by months.

There is no waiting for Republicans, who are engaged in a furious behind-the-scenes scramble for advisers and donors. Mitt Romney,...