The constitutional right laid out in the 1973 High Court ruling has come under steady attack as laws in a number of Republican-led states have made it increasingly difficult for women to obtain abortions.

US Supreme Court appears likely to roll back abortion rights

“In recent years, we have seen efforts to restrict access to reproductive health care increase at an alarming rate,” the Biden-Harris statement said, citing recent laws in Texas, Mississippi and other states.

Abortion rights advocates fear that the current Supreme Court, including three conservative justices named by former president Donald Trump, will excoriate – or eliminate – that right.

In Washington on Friday, thousands of anti-abortion activists attended an annual rally on the National Mall with their hopes raised that the conservative-majority court will do exactly that.

“In the coming months we anticipate a monumental decision from the Supreme Court,” said Julia Letlow, a Republican congresswoman from Louisiana.

A president’s ability to affect the law is limited, but Congress has the power to pass laws providing some protection to abortion rights.

“The Biden-Harris Administration strongly supports efforts to codify Roe, and we will continue to work with Congress” on such legislation, the White House statement said.

It added: “We must ensure that our daughters and granddaughters have the same fundamental rights that their mothers and grandmothers fought for and won on this day, 49 years ago.”