Hillary Rodham Clinton has fed speculation that she might run for the White House in 2016 by telling an audience in Canada she would like to see a woman president of the US in her lifetime.
"Let me say this, hypothetically speaking, I really do hope that we have a woman president in my lifetime," Clinton told a private audience in Toronto. "And whether it's next time or the next time after that, it really depends on women stepping up and subjecting themselves to the political process, which is very difficult."
Clinton, a Democrat who was secretary of state under President Barack Obama, a former senator from New York and the wife of former president Bill Clinton, is said to be undecided whether to seek the presidency in 2016.
Many Democrats and Republicans expect her to run, although the 65-year-old has said she needs to rest after four years as a globe-trotting secretary of state.
Polls show she is the most popular potential Democratic candidate, and that most voters would prefer her to several possible Republican contenders. Last week, in starting her official Twitter account, she alluded to her future as TBD - to be determined.