The U.S. Supreme Court struck down Texas’ sweeping abortion regulations on Monday, ruling 5-3 that they unconstitutionally limit a woman’s right to obtain an abortion under Roe v. Wade.

Justice Stephen Breyer’s decision in Whole Woman’s Health v. Hellerstedt, in which Justice Anthony Kennedy joined the court’s liberal justices, delivers a major blow to abortion opponents, who made clinic regulations a major part of their strategy over the last few years.