SD threatens a government crisis if the government does not stop the EU's asylum and migration pact. But Sweden cannot block the pact on its own.

"Normally, an individual country does not decide what the end product will be," says political scientist Bernd Parusel at SIEPS. It is likely that what Parliament has voted through will not be the final law, as Parliament tends to be more ambitious than the Council of Ministers, says Parusels. "The Mediterranean countries have been saying for years that they want more relief with the people who go there," he says.