Danish Prime Minister Mette Frederiksen’s approval rating has risen significantly after she defended her country’s sovereignty against US President Donald Trump’s threats to annex Greenland, reports Politico.

Frederiksen’s party has seen a dramatic surge in poll ratings through January—just months after awful results in last year’s local elections—as it launched a vehement defense of Denmark’s sovereignty against Trump’s aggressive threats to annex Greenland.

“There isn’t really another explanation for it,” said Anne Rasmussen, a political science professor at King’s College London and the University of Copenhagen, referring to the surge in support. “It’s first and foremost Greenland.”

Rasmussen said the last time Denmark experienced such a wave of solidarity with its government was during the Covid pandemic, adding that national crises tend to favor incumbents.

But the phenomenon is not unique to Denmark, Politico adds. In elections from Canada to Australia, standing up to Trump has become electoral rocket fuel, as leaders who frame themselves as defenders of national sovereignty and liberal democracy are being rewarded by voters eager for pushback against the US president.