President Donald Trump s nomination of Judge Amy Coney Barrett to the Supreme Court has at once alarmed liberals and exhilarated social conservatives, both of whom believe that she would be likely to support restrictions on abortion rights and could even vote to overturn Roe v. Wade , the decision legalizing the procedure nationwide.

On Saturday, Trump nominated Barrett, a federal judge on the U.S. Court of Appeals for the 7th Circuit and a law professor at the University of Notre Dame, after the death last week of Justice Ruth Bader Ginsburg . If confirmed, she would replace one of the courts most consistent liberal voices, dramatically shifting the courts center of gravity further to the right. She could also have a long tenure: At 48, Barrett would be the youngest justice on the bench.

Abortion rights advocates are terrified about what that means. Barrett is known for her conservative religious views, and, in recent years, her name has risen to the top of anti-abortion groups wishlists of prospective Supreme Court justices. A devout Catholic, Barrett has seven children, including two who are adopted, and has spoken openly about her personal belief that life begins at conception.

Its impossible to know for certain how any justices tenure will go. There are several examples of judges viewed as reliably anti-abortion making unexpected rulings, including this year, when John Roberts sided with his liberal colleagues to strike down a Louisiana abortion law. But many clues point to Barretts hostility to Roe v. Wade. And if she makes it to the Supreme Court, where abortion issues come up time and time again, shell have considerable power to shape the future of reproductive rights for the entire nation.

A bruising confirmation battle is expected with abortion rights at its center. Her nomination comes on the heels of a historic surge in bold abortion bans passed in state legislatures across the country.

Barretts Record On Reproductive Rights

Barrett has been a federal judge for only three years, so much of what can be gleaned about her views on reproductive rights comes from her time in academia.

From 2010 to 2016, she was a member of Notre Dames Faculty for Life group, which was founded to promote research, dialogue and publication by faculty who respect the value of human life from conception to natural death.

During that time, Barrett signed a letter of protest to the Obama administration about the birth control mandate in the Affordable Care Act that requires most private health insurance plans to cover birth control without a copay. The statement criticized the workaround offered to religious employers, saying it changes nothing of moral substance and fails to remove the assault on individual liberty and the rights of conscience which gave rise to the controversy. The birth control mandate was back at the Supreme Court as recently as last term .

Barrett also signed onto a letter to Catholic bishops giving witness to the value of human life from conception to natural death.

She told students in 2013 that it was unlikely that Roe would be overturned and expressed her opinion that supporting poor, single mothers was the best way to reduce the number of abortions in the U.S. At another talk, at Jacksonville University in 2016 , she repeated that the central holding of Roe that women have the right to an abortion was unlikely to change.

I think the question is how much freedom the court is willing to let states have in regulating abortion, she said.