A majority of the U.S. Supreme Court on Monday appeared likely to allow a Texas abortion clinic’s challenge to that state’s anti-abortion law to go forward, but were not ready to embrace fully the United States’ challenge.

For nearly three hours, the justices probed the limits of arguments made in two separate cases united by Texas’ enactment of S.B. 8, the Heartbeat Act, which bans abortions after the sixth week of pregnancy and violates the Supreme Court’s abortion rights precedents.