Speculation abounded this week as to whether Elizabeth Warren hopes to be the Democratic candidate in the next US election.Elizabeth Warren has had a rapid rise to prominence since her election as Senator for Massachusetts in 2012. Her interrogation of key figures from the banking sector during the financial crisis earned her nicknames such as the 'Sheriff of Wall Street' and the 'Matriarch of Mayhem'.On Profile this week Chris Bowlby looks at the life and character of the woman who is said to make many Wall Street executives shiver.Producer: Charlotte Pritchard.

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