Pelosi faces tough baptism as the first queen of Capitol Hill
When the Democrats won the 2006 congressional elections it was widely seen as a repudiation of the past six years of Republican rule and President George W. Bush.
Budget deficits, an increasingly partisan and corrupt atmosphere in Washington and, above all, the war in Iraq drove Americans into the arms of Democrats, who this week took control of both houses of Congress for the first time in 12 years.
Now it is up to Nancy Pelosi, the new Speaker of the House, to figure out how to begin to solve the problems that Mr Bush has created (or ignored) since 2000.
Mrs Pelosi, 66, is the highest-ranking woman ever in the US government. As the first woman Speaker she presides over the House of Representatives, and is as such the primary public face of Congress.
The Speaker is also second in line to the presidency, so in the unlikely event that the president and vice-president die at the same time, Mrs Pelosi would become president.
Mrs Pelosi was born in Baltimore, Maryland, where her father was mayor and a congressman. She met her husband in college and moved with him after graduation to his hometown of San Francisco. She was a stay-at-home mother until the last of her five children was grown, and then started getting involved in Californian Democratic politics. In 1987 she was elected to US Congress, and became House leader of the Democrats in 2002.