On May 14, the U.S. Supreme Court refused to hear Igartua v United States, 11-876. This is the case on whether the U.S. is obliged by various treaties it has signed to give Puerto Rico voting representation in Congress. Although the First Circuit had ruled against Puerto Rico in this same case, the decision had been 2-1.
Puerto Rico is the most populous jurisdiction in the world which has no voting representative in the national legislature (among those countries that have elected national legislative bodies). If Puerto Rico were entitled to voting representatives in the U.S. House, it would have eight or nine U.S. House members.
All overseas possessions of France, Netherlands, Spain, and Portugal are treated as parts of that nation, for representation in the national legislature. This is not true for Great Britain, but Great Britain’s most populous unrepresented colonial possession is Bermuda, which has fewer than 75,000 inhabitants. Aside from that, the Channel Islands, and the Isle of Man, are not considered parts of Great Britain and have their own parliaments, even though they recognize the British monarch as their own head of state.