Hillary Clinton sets off for tour of key states

Former US Secretary of State, Hillary Clinton has set out for a tour of key states, at the start of her campaign to become the first woman US president.

She is taking a road trip to meet small groups of voters in Iowa, having announced her bid for the Democratic presidential nomination yesterday. 

She had been expected to declare her candidacy for months. 

Mrs Clinton ran for the Democratic presidential nomination in 2008 but lost to Barack Obama.

BBC