Section 1. Full faith and credit shall be given in each state to the public acts, records, and judicial proceedings of every other state. And the Congress may by general laws prescribe the manner in which such acts, records, and proceedings shall be proved, and the effect thereof.
No mention of Sweden or any other Eurosocialists in the US Constitution.
Several years ago, José became a US citizen, but he was still not married. He said that he couldn't find a good woman in America, so José went to México, married Juanita, and had a big wedding reception at Juanita's village.
José went to the US consulate in Guadalajara, filled out several papers, and waited a few months. His wife, Juanita, came to the US four months later.
Mario came to the US and married an American citizen. After Mario became a US citizen, he divorced his American wife and became involved in drug shipments from Latin America.
The US Attorney could not get Mario for drug trafficking, but he got Mario for bigamy. The US Attorney prosecuted Mario because he had been married in Colombia, and without divorcing his Colombian wife, he moved to America and married an American.
Mario said he had been separated from his Colombian wife even before he came to America, and he thought that foreign marriages did not count in America. He was convicted of bigamy.
Real life examples.