Geert Wilders suffered a loss of support as a center-left party staged major gains, an election result that could offer lessons for Europe’s far right.
The progressive Democrats 66 gained seats and tied with the far-right party of Geert Wilders, which fell back sharply from a strong performance two years ago.
A center-left party was poised to become the country’s largest political party, according to exit polls. The anti-immigrant Party for Freedom, led by Mr. Wilders, was expected to lose 12 seats.