French Prime Minister Manuel Valls said yesterday that far-right leader Marine Le Pen had a chance of winning next year's presidential election, boosted by the momentum of Donald Trump's shock win in the United States.

"It's possible," Valls said in response to a question at an economic conference in Berlin on whether the candidate of France's anti-immigration National Front could win in light of the U.S. presidential election.

Le Pen is widely tipped to reach the second round of the election on May 7, where she would face either a candidate of the mainstream right or the left.

"This means that the balance of politics will change completely," Valls said, warning of "the danger presented by the extreme right."

There is growing concern in France that the same wave of populist, anti-globalization anger that carried Trump to the White House could hand Le Pen the keys to the Elysée Palace.

"Of course there are risks in France, I am struck by the tone of the public debate," Valls said.

But he stressed that there were differences between Trump and Le Pen, noting that the American billionaire was the candidate of a mainstream party even though his "speeches and proposals are worrying."

To respond to the "anger" that led to the British decision to quit the EU and Trump's election win, Valls pleaded for a new approach to globalization.

"I am for a globalization that serves the people," he said.

Meanwhile, former economy minister Emmanuel Macron launched his bid for the presidency on Wednesday, a move likely to take votes from mainstream candidates in a tight race that promises a strong turnout for Le Pen.