US Democrats have elected former Labour Secretary Tom Perez as their new national chairman.
Mr Perez, who served in the Obama administration, won the second round of voting at the Democratic National Committee meeting in Atlanta after a tightly-fought contest.
He is the first Latino in the post.
He told his party they faced a crisis of confidence after the election of Donald Trump, whom he said was the worst president in US history.
Mr Perez will face the tough task of trying to unite a party beset with lingering frictions between young progressive liberals who were sceptical of Hillary Clinton and the Democratic Party establishment, correspondents say.
"I am confident that when we lead with our values and lead with our actions we succeed. That is what the Democratic Party has always been about and that is what we will continue to be about", Mr Perez told party delegates.
He said that while the 20 January inauguration of Mr Trump "was an undeniably important day", the mass protests that followed were "far more important for America".
Nevertheless he acknowledged that the Democratic party was "suffering from a crisis of confidence, a crisis of relevance".
Mr Perez defeated Keith Ellison, a US representative from Minnesota, in a 235-200 second round vote.
Mr Ellison, the first Muslim elected to the US Congress, was backed by Senator Bernie Sanders.
He was swiftly made deputy chairman and urged party members to unite behind Mr Perez.