France's newly-appointed Prime Minister Sebastien Lecornu reacts as he speaks at the end of the handover ceremony at the Hotel Matignon in Paris on September 10, 2025. LUDOVIC MARIN/Pool via REUTERS
French outgoing Prime Minister Francois Bayrou shakes hands with newly appointed Prime Minister Sebastien Lecornu as he arrives for the handover ceremony at the Hotel Matignon in Paris, France, September 10, 2025. REUTERS/Stephanie Lecocq
French outgoing Prime Minister Francois Bayrou delivers a speech next to newly appointed Prime Minister Sebastien Lecornu during the handover ceremony at the Hotel Matignon in Paris, France, September 10, 2025. REUTERS/Stephanie Lecocq
France's outgoing Prime Minister Francois Bayrou meets with the newly appointed Prime Minister Sebastien Lecornu before the handover ceremony at the Hotel Matignon in Paris, France September 10, 2025. Ian Langsdon/Pool via REUTERS
French outgoing Prime Minister Francois Bayrou stands next to newly appointed Prime Minister Sebastien Lecornu during the handover ceremony at the Hotel Matignon in Paris, France, September 10, 2025. REUTERS/Stephanie Lecocq

By Michel Rose

PARIS (Reuters) - France's new prime minister, Sebastien Lecornu, pledged to find creative ways to work with rivals to pass a debt-slimming budget while also promising new policy directions, after taking office on a day of sprawling anti-government protests on Wednesday.

President Emmanuel Macron picked Lecornu to be his fifth prime minister in two years on Tuesday, naming a loyalist who is unlikely to rip up his pro-business economic agenda.

Lecornu replaced Francois Bayrou, who was ousted in a parliamentary vote on Monday over his plans to trim the country's outsized budget deficit, the biggest in the euro zone.

Lecornu, most recently defence minister, said in a brief speech after a handover ceremony that the government would need "to be more creative, sometimes more technical, more serious," in how it works with the opposition. But he also said "ruptures will be necessary".

Lecornu's immediate challenge will be how to steer a streamlined 2026 budget through parliament, which is split into three distinct ideological blocs. Parties broadly agree on the need to slash France's deficit, which reached 5.8% of GDP in 2024, but not on how to do it.

Lecornu has to send a full draft of the text to parliament by October 7, although there is some wiggle room until October 13, after which lawmakers will run out of time to pass the budget by year's end.

Reactions to Lecornu's appointment underscored the challenge he faces.

While the hard-left said it would seek to topple Lecornu with an immediate no-confidence motion, the far-right National Rally (RN) signalled tentative willingness to work with him on the budget - as long as its budgetary demands are met.

The RN is France's largest parliamentary party and as such a crucial factor in any potential no-confidence motion. Still, Lecornu is seen as the closest member of Macron's circle to the RN, having dined with RN president Jordan Bardella last year.

Bardella, reacting to Lecornu's speech, said the new prime minister "is in a very precarious position."

Using the same word used by Lecornu in his speech, Bardella said he wanted to see the new government adopt RN concerns: "Either there's a rupture, or there's a no-confidence motion."

'BLOCK EVERYTHING' PROTESTS

Lecornu's other - more complicated - path to passing the budget involves uniting the Socialists, who want to water down budget cuts and tax the rich, with his former party The Republicans, who are dead-set against any tax rises.

Macron, in an unusual step, called Socialist party leader Olivier Faure on Tuesday to tell him he would not be appointing a leftist as prime minister. On Wednesday, Faure appeared to leave the door ajar to working with Lecornu, while also saying he would support a no-confidence measure if he felt the government didn't take on board its budgetary priorities.

Thousands of people across France meanwhile took to the streets as part of so-called "Block Everything" protests, an expression of broad discontent with Macron, proposed budget cuts and the entire political class.

"Anger has been rumbling for months, even years," said Daniel Bretones, a union member protesting in Marseille. "We're on the fifth prime minister under Macron's second term, and it has never changed anything."

(Reporting by Gabriel Stargardter; Editing by Frances Kerry and Hugh Lawson)