President Donald Trump's administration has escalated its efforts to restrict birthright citizenship by petitioning the Supreme Court to uphold an executive order that denies citizenship to children born to parents who are in the US illegally or temporarily. The move challenges a constitutional interpretation upheld for over 125 years under the 14th Amendment. Lower courts have blocked the restrictions, and the Supreme Court is set to consider whether to take up the case, with a ruling anticipated by early summer. Solicitor General D. John Sauer argued that the lower courts unjustly grant citizenship privileges without lawful justification. The American Civil Liberties Union opposes the order as unconstitutional.