On February 13, U.S. District Court Judge Leo Sorokin, an Obama appointee, enjoined President Trump’s order on birthright citizenship. Doe v Trump, U.S. District Court for Massachusetts, 1:25cv-10135. Here is the 31-page opinion, which stresses that the Fourteenth Amendment is not concerned about the parents of the person born in the United States, just the person born here.
The other decisions that agree were issued recently in Maryland, Washington, and New Hampshire.