Chelsea Clinton has hinted that she may run for political office in the US while refusing to rule out a challenge for the presidency.

The daughter of former President Bill Clinton and his wife Hillary, the current Secretary of State, indicated that her family may yet become the latest multi-generational force in Washington DC, following the Kennedy and Bush dynasties.

Asked if she wants to stand for the presidency, Ms Clinton told the BBC: "I honestly don't know… I certainly feel a strong call for public service."

She added: "Before my mum's campaign [to become the Democratic presidential nominee] in 2008 I would have said no - not as a result of any long deliberate thoughtful process but rather because people have been asking me that question for as long as I could remember."