Tusk’s Authority Takes a Hit From Nationalist Win Before Polish Confidence Vote

Donald Tusk’s premiership is reeling from a presidential election debacle that’s left the Polish leader diminished in the face of a resurgent nationalist opposition.

The defeat of Tusk’s ally — who topped polls until weeks before the June 1 contest for the presidency — has sparked calls from some ruling coalition lawmakers for the prime minister to step aside. It’s exposed tension that’s been building in his pro-European alliance since it vaulted to power 19 months ago, ending eight years of populist rule.