Populist far-right lawmaker Geert Wilders has plunged Dutch politics into turmoil Tuesday by withdrawing his party’s ministers from the ruling coalition in a dispute over a crackdown on migration.

Even if it remains the largest party, fashioning a coalition will be difficult in a deeply polarised nation. Opposition parties rule out working with Wilders and his sudden move on Tuesday angered and baffled political partners.

The Netherlands’ 11-month-old coalition government appears close to collapse after far-right leader Geert Wilders said he would “sleep on” a decision on whether to pull out of the fragile four-party p