Marine Le Pen’s far-right National Rally has bolstered its lead ahead of the first round of France’s snap legislative election on Sunday as its rivals have stalled in their effort to catch up.

The party and its allies have risen by 0.1 point to 36.2% in Bloomberg’s poll of polls. A leftist alliance called the New Popular Front, bringing together Socialists, Communists, Greens and the far-left France Unbowed, is second on 28.3%, slipping 0.1 point. President Emmanuel Macron’s centrist group is trailing on 20.4%.

Macron dissolved the National Assembly earlier this month and called a snap legislative vote after his group was trounced in European Parliament elections. The first round will be held on Sunday, with a second on July 7.

While the two-step ballot makes seat predictions tricky, projections by polling companies show the National Rally and its allies are on track to become the biggest group in the lower house of parliament. While they have mostly indicated Le Pen’s party would fall short of the 289 lawmakers needed to form an absolute majority, a survey of 2,004 adults by Elabe published Friday estimated it would get 260-295 seats.

A separate LegiTrack OpinionWay-Vae Solis poll of voting intentions among 1,058 people showed several dozen National Rally candidates will be elected in the first round, with about 400 present in the second, where the number of three-way runoffs is expected to reach a record 150-200.