The U.S. Court of Appeals for the Ninth Circuit has declined to rehear Newsom v. Trump en banc—meaning by the full court—effectively upholding a prior ruling that permits President Donald Trump to maintain federal authority over California National Guard troops deployed in Los Angeles during protests earlier this year.

The case presents an important test of the Supreme Court’s willingness to curb Trump’s so-called emergency powers.

President Donald Trump has won a string of cases on the Supreme Court's emergency docket this year, but many of these temporary victories will face full merit reviews.

President Trump is asking the Supreme Court for a definitive ruling on his reinterpretation of more than a century of legal precedent around birthright citizenship.