WASHINGTON — The Supreme Court on Tuesday rejected U.S. President Donald Trump's attempt to restrict birthright citizenship in a high-profile ruling, dealing a legal setback to his administration's immigration policy. In a 6-3 decision, the top court upheld a lower court decision against Trump's executive order issued in January last year, which sought to deny birthright citizenship to children born in the United States to undocumented immigrants and temporary visa holders. The ruling marked yet another legal defeat for Trump at the court, following its February decision that struck down his administration's country-specific "reciprocal" tariffs imposed under the 1977 International Emergency Economic Powers Act. The court reaffirmed the citizenship clause of the U.S. Constitution's 14th Amendment, which states "all persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside." "Citizenship, then and now, was the right to have rights to freely participate in our political community. The