PARIS: The conservative candidate who has emerged as Emmanuel Macron’s most serious challenger for next year’s presidential election kicked off her campaign on Saturday by announcing she would resist German calls for a federal European superstate.

Valerie Pecresse, who has described herself as “1/3 Thatcher, 2/3 Merkel”, was the surprise winner of the leadership contest of the conservative Les Republicains party last weekend, and has since got a big bounce in opinion polls.

In her first campaign rally as the candidate of a party that traces its roots to Charles de Gaulle, Pecresse said she wanted the EU to preserve the independence of nation states and not become a federal superstate, like the United States.

Historically, French conservatives have been in favour of European integration in the economic field, such as creating the euro or the single market, but have resisted attempts to shift decision-making to the EU level on sensitive sovereign issues such as foreign policy and defence.

“I hear some of our German partners suggest that the European Union should evolve into a federal state,” she said.

“Politely, but firmly, I will say “no”,” she added.

The agreement forming Germany’s new governing coalition under Chancellor Olaf Scholz says the EU should aim to move toward a “federal European state” after a constitutional convention within the EU.

Pecresse also said she did not want France to be what she called a vassal of the United States, did not want to see another country exit the EU as Britain did and would work with Scholz despite his left-wing majority.

“I would work with him because Germany is a key ally. But for me, friendship doesn’t come without frankness,” she said.

At the rally in central Paris, Michel Barnier, the EU’s former Brexit negotiator who lost his bid to be the party leader, said he agreed with Pecresse on Europe.

“We never were federalists, we’re in favour of a community of nations. Nations need to be respected in Europe. We need nations to fight nationalism,” Barnier told Reuters.

Pecresse, who heads the greater Paris region and was a minister in Nicolas Sarkozy’s last conservative government, was cheered by a poll this week that showed she would beat Macron by a 52-48 margin if she reached the presidential run-off in April.