To supporters like Carel Buxton, a retired school principal from London, the 67-year-old long-time leftist Corbyn is “authentic”.

“People in this country are sick to death of well-spoken, booted-and-suited slimy politicians,” she said.

But to detractors like John McTernan, a former senior adviser to Prime Minister Tony Blair, Corbyn “is nothing other than a complete and utter disaster for the Labour Party.”

Last year Corbyn, a long-time back-bench lawmaker, was the shock choice of party members to head Labour, which has lost two successive general elections to the Conservatives.

He has strong support among local activists, but many Labour legislators believe his left-wing views are out of step with public opinion, and tried to unseat him.

Corbyn’s margin of victory is larger than a year ago, but he heads a party that’s deeply divided about whether it values political principles over gaining power.

Accepting his victory to a standing ovation from delegates, Corbyn pledged to work for unity.

“We have much more in common than that which divides us,” he said. “As far as I’m concerned, let’s wipe that slate clean from today and get on with the work we’ve got to do as a party.”

Like Bernie Sanders, who shares some of Corbyn’s outlook, or Trump — who definitely doesn’t — Corbyn is a sign of how the political centre ground has eroded.

Corbyn spent more than 30 years as a Labour lawmaker, never holding a senior role and best known for his frequent rebellions against the centre-left party’s leadership. When he ran for leader, few expected him to win. But he was propelled to victory by thousands of new members who joined Labour to back him.

For Corbyn supporters, it was a chance to repudiate the centrist “new Labour” vision of Blair, who won three British elections starting in 1997 but became too cosy with big business for some tastes and took Britain into the unpopular US-led Iraq War.

Labour lost power in 2010 to Conservative-led governments that have overseen years of public spending cuts.

Corbyn harkens back to Labour’s working-class socialist roots with promises to build hundreds of thousands of government-backed homes, raise wages for the poor and taxes for the rich, abolish university tuition fees and get rid of Britain’s nuclear weapons.

Tens of thousands more new members have flocked to Labour since Corbyn was elected, making it Britain’s largest party. He draws big crowds to rallies and meetings, and his supporters are a formidable force on social media.

His followers — dubbed Corbynistas — see Labour as a mass movement for social justice, similar to Spain’s Podemos, rather than simply a machine for winning elections.

“Politics is changing,” said Emma Hamblett, a Labour conference delegate from Romford, near London. “It’s becoming more people-powered (rather) than just the elite at the top. We’re having a voice. It’s generating a lot of excitement, especially among the young.”

But most Labour lawmakers and a chunk of party members despair of ever regaining power while Corbyn is in charge. They argue that his policies are too narrowly left-wing to win over undecided voters. And they fear a return to Labour’s civil war of the 1980s, when party leaders battled to eject hard-left factions and some members split to form the Social Democratic Party.

Although he enthuses crowds at rallies, Corbyn is a lacklustre performer in Parliament. He gave only muted support to the European Union during this year’s referendum campaign on whether Britain should leave the 28-nation bloc, a factor some think contributed to the “leave” victory that will change the country’s future forever.

Corbyn called Saturday for an end to “intimidation and abuse.”

“It’s not my way, and it’s not the Labour way,” he said.

Despite the calls for unity, Labour members continue to trade blame for the party’s woes. Pro- and anti-Corbyn forces are tussling for control of the party executive and battling over who chooses the members of Labour’s top team in Parliament.

Lawmaker Diane Abbott, a Corbyn ally, urged dissenting lawmakers to “settle down and unite behind the leader.”

John Spellar, a long-serving Labour lawmaker who backed Smith, said the century-old party would find a more moderate path again, eventually.

“This country needs a sensible progressive party, and it will get one back,” he said. “It’s just a question of time.”

CORBYN’S KEY POLICY VIEWS

Brexit

Corbyn, who critics have accused of being a lacklustre campaigner for Britain’s EU membership during this year’s referendum campaign, has rejected calls for a second referendum and said the vote to leave must be respected.

He has said Labour will be pressing for Britain to have full access to the EU’s single market, but without requirements to liberalise and privatise public services. It will also call for protections for social, employment and environmental rights to be maintained in the Brexit deal.

Corbyn has said falling back on World Trade Organisation terms with the EU could risk significant job losses and would be damaging to Britain’s public finances.

Economy

Corbyn opposes the Conservative government’s spending cuts and has pledged to create a National Investment Bank and network of regional investment banks to invest 500 billion pounds ($653.50 billion) over 10 years into infrastructure and high-tech industries.

Under his leadership, Labour has set out a “fiscal credibility rule”, which would require it to balance day-to-day spending with money raised through taxes, only allowing borrowing for investment.

He believes in government intervention to support supply chains and new industries, and has pledged to renationalise Britain’s railways. He has also said he will hold a review on the idea of introducing a universal basic income.

Corbyn wants to strengthen employment and trade union rights, and has called for measures to allow workers to take ownership of companies when there is a change of ownership or a threat of closure.

Defence

A long-time pacifist, Corbyn favours scrapping Britain’s nuclear weapons. He defied official Labour Party policy and put himself at odds with many of his lawmakers by opposing renewing the Scottish-based nuclear-armed Trident submarines at a parliamentary vote in July.

Corbyn, who has said he will create a minister for peace and a minister for disarmament if he were in government, would also like to see Britain pull out of the Nato military alliance.

A vocal opponent of the 2003 Iraq war, Corbyn last year voted against Britain joining the US-led coalition conducting airstrikes against Islamic State in Syria.

Foreign

Corbyn has previously criticised the United States for putting pressure on Britain to boost its military expenditure and has said the long-term impact of US foreign policy will be to divide the world.

The Labour leader has said he regrets describing members of the Palestinian group Hamas and Lebanon’s Hezbollah as friends. Hamas and the military wing of Hezbollah are both officially designated as terrorist organisations by Britain.

He has a history of political sympathy for Gerry Adams, the leader of Sinn Fein, the former political wing of the Irish Republican Army which ran a 30-year armed campaign against British rule in Northern Ireland.

Additional reporting by Reuters