Washington (CNN) – Hillary Clinton told Charlie Rose on Thursday that if she does run for president in 2016, she would have "a very specific agenda" about the future of America.
But with polls showing her as the favorite for the Democratic nomination and a cadre of groups already organizing for a prospective campaign, what would cause the former secretary of state to not run for office?
"It would be wholly personal," Clinton said, according to a transcript of the PBS show. "Because I know so much about the job and how hard it is, I am very struck by the historic nature of a campaign that I might, in the future, undertake."
The job, Clinton added, has also "gotten even bigger and more difficult."
"You've got to get the money from the Congress to really improve what you're doing, personnel policies, and all the rest," Clinton said. "So the job is as challenging as it's always been, but I would say almost to a degree of amplification that's hard to imagine."
At the same time, Clinton, who unsuccessfully ran for president in 2008, said that the possibility of her becoming the first woman president makes her decision a bit different than other prospective presidential hopefuls.
"Hard choices are not necessarily the same for everybody. You know, for some people, running for president seems like the next step on a career," Clinton said, contrasting her decision as a possible signal for female power and encouragement.
Clinton's interview with Rose, who admitted at the top of the interview that he considers the former senator a friend, is part of the former first lady's ongoing "Hard Choices" book tour.
During the tour, Clinton has become more open about admitting that she is considering a presidential run in 2016. While she was coy with questions for months leading up to the book tour, Clinton now occasionally answers 2016 questions without caveats.
"We have to make a campaign about what we would do," Clinton said about a possible 2016 run. "You have to run a very specific campaign that talks about the changes you want to make in order to tackle growth, which is the handmaiden of inequality."
Later in the interview, though, she said she was "not going to, you know, jump the line and start talking about 2016 right now."
Hillary, Bill and love
When Hillary Clinton's marriage was stretched to its thinnest, the former first lady said, she and President Bill Clinton had "love."
"I mean, it had really at bottom a very strong and consistent sense of love in a very deep way," she said.
Hillary Clinton's marriage was stretched thin in the late 1990s when the nation's attention was captivated by the sordid details of Bill Clinton's affair with White House intern Monica Lewinsky. The relationship and grand jury investigation led the House to impeach Clinton on two charges in December 1998. In February 1999, the Senate acquitted him.
In her 2003 memoir, Clinton described herself as "dumbfounded, heartbroken and outraged" when her husband told her about his relations with Lewinsky. "Gulping for air, I started crying and yelling at him," she wrote. "'What do you mean? What are you saying? Why did you lie to me?'"
While her marriage with Bill Clinton is something Hillary Clinton rarely talks about, when she does, she regularly refers to her closeness to her husband.
"I don't know how you describe it," Clinton said about her relationship with her husband. "You certainly can't bottle it."
She later added: "You know, we just have this deep profound connection that is love and companionship and support and intellectual rapport. I mean, it just is all of that rolled up into one. ... It's a tremendously fulfilling and reinforcing experience all the time. I just can't describe it any better."