Donald Trump has hailed today's Supreme Court ruling a "giant win" after judges were told their power to block his bid to end birthright citizenship had been curbed.
The decision, which split the Supreme Court six to three, will ensure the 47th President's proposal now avoids facing injunctions mounted by individual judges.
Shortly after the ruling, Trump said: "Giant win in the United States Supreme Court.
"Even the birthright citizenship hoax has been, indirectly, hit hard.
"It had to do with the babies of slaves (same year), not the scamming of our immigration process."
All six conservative justices sided with Trump, including the three he personally appointed to the Supreme Court.
The case arose after Trump was put at loggerheads with various judges over his proposal to end the right to birthright citizenship.
Trump attempted to push ahead with an executive order to deny citizenship to American-born children of people who entered the country illegally.
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|US President Donald Trump
However, his proposal was met with a judicial backlash in the form of injunctions in Maryland, Massachusetts and Washington.
Trump's plan still faces a legal hurdle in New Hampshire after a separate lawsuit which did not appear before the Supreme Court put the brakes on the policy.
The proposal does have legal backing in 21 other US states.
Birthright citizenship, which is protected in the US Constitution, enables anyone born in the America to acquire automatic citizenship rights.
REUTERS | An image of the Texas National Guard on the US-Mexico border
Trump intends to amend the law to only provide birthright citizenship to those born in the US with at least one parent who is either US-born or a permanent resident.
Addressing reporters in the White House, Trump said: "This was a big one. Amazing decision, one we're very happy about.
"This morning the Supreme Court has delivered a monumental victory for the Constitution, the separation of powers and the rule of law in striking down the excessive use of nationwide injunctions to interfere with the normal functioning of the executive branch."
"That's not about tourists coming in and touching a piece of sand and then all of the sudden there's citizenship, you know they're a citizen, that is all about slavery,' the President added.
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|Demonstrators hold a banner outside the US Supreme Court, on the final day of the Court's term, in Washington, DC
Justice Amy Coney Barrett, who was appointed to the Supreme Court by Trump in 2020, confirmed today's ruling shortly before the President's press conference.
She said: "Federal courts do not exercise general oversight of the Executive Branch; they resolve cases and controversies consistent with the authority Congress has given them."
However, Trump's executive order will not go into effect for 30 days, giving time for further legal challenges.
Justice Sonia Sotomayor led the dissent against the Supreme Court's ruling.
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|Donald Trump speaks on recent Supreme Court rulings in the briefing room at the White House on June 27, 2025
"No right is safe in the new legal regime the Court creates," Justice Sotomayor wrote.
"Today, the threat is to birthright citizenship. Tomorrow, a different administration may try to seize firearms from law-abiding citizens or prevent people of certain faiths from gathering to worship.
"The majority holds that, absent cumbersome class-action litigation, courts cannot completely enjoin even such plainly unlawful policies unless doing so is necessary to afford the formal parties complete relief.
"That holding renders constitutional guarantees meaningful in name only for any individuals who are not parties to a lawsuit. Because I will not be complicit in so grave an attack on our system of law, I dissent."
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