AUSTIN, Texas (AP) — The Biden administration says it will turn next to the U.S. Supreme Court in another attempt to halt a Texas law that has banned most abortions since September.

The announcement Friday by the Justice Department comes after an appeals court again left in place the law that bans abortions once cardiac activity is detected.

That is usually around six weeks and before some women know they are pregnant.

The Texas law is the nation’s biggest curb to abortion in nearly 50 years.

Last month, the Supreme Court allowed the law to take effect but did so without ruling on whether it is constitutional.

The Biden administration is once again asking the courts to block a new Texas law that bans most abortions.

The Justice Department submitted its brief to the 5th US Circuit Court of Appeals Monday.

It argues that Senate Bill 8 violates the constitution and is an "assault on the rights of its citizens."

The law bans abortions after cardiac activity can be detected, which is about six weeks into a pregnancy. Abortion rights activists have said that many women don't know they are pregnant that early.

The 5th U.S. Circuit Court of Appeals gave Texas until Thursday to respond to the Justice Department’s latest arguments, according to The Associated Press.

However, the law remains in place for now. Last week, the 5th U.S. Circuit Court of Appeals granted a stay of a lower court's ruling, which blocked the law.

AUSTIN, Texas (AP) — The Biden administration urged a federal judge to block the nation’s most restrictive abortion law, which has banned most abortions in Texas since early September.

U.S. District Judge Robert Pitman did not say when he would rule following a nearly three-hour hearing Friday in Austin.

So far, abortion providers trying to block the Texas law have been rejected at every turn.

That makes a lawsuit filed by the Biden administration their best chance yet to deliver the first legal blow to the GOP-engineered law.

The law effectively bans abortion before some women know they are pregnant, and there are no exceptions in cases of rape or incest.

Enforcement is solely left up to private citizens.