California’s Catholic bishops want the U.S. Supreme Court to overturn a state sex abuse law, setting up another conflict with the high court.

Nine California Catholic dioceses and archdioceses have asked the nation’s highest court to review their case against a 2019 law signed by Gov. Gavin Newsom, which created a three-year window for survivors of childhood sexual abuse to file legal claims against alleged perpetrators at school, church or elsewhere, regardless of when the alleged abuse occurred. The law also allowed defendants to be sued for a new offense: “cover up” activity.

In the April 15 petition, which was first reported last week by the Catholic News Agency, lawyers for the Catholic bishops assert the law is unconstitutional because California already gave victims a chance to sue in 2002 — when it opened a one-year portal for sex abuse survivors to file claims with no time limit attached — and because it retroactively adds new liabilities.

The lawyers wrote: “Review is critical now, before the Catholic Church in the largest state in the union is forced to litigate hundreds or thousands of cases seeking potentially billions of dollars in retroactive punitive damages under an unconstitutional double-revival regime.”

They added that their clients have already paid more than $1.2 billion to resolve claims filed during the original one-year window, and “to finance these settlements, they expended significant resources, sold vast swaths of Church property, and in some cases exhausted or relinquished insurance coverage for past and future abuse claims.”

The Survivors Network of those Abused by Priests slammed the bishops’ petition: “The 2002 window lasted one year, barely enough time for victims to find their courage or their voices. Many only heard about the window or found their courage too late. This new three-year window is allowing survivors in a huge state the time to speak out, get help, and come forward. We believe it is that bravery that is scaring California’s Catholic bishops.”

Newsom’s office declined to comment: “We have nothing to add at this time,” Daniel Lopez, Newsom’s deputy communications director, told me in an email.

But the petition, which came came less than a month before Politico published a draft U.S. Supreme Court majority opinion showing justices are poised to overturn the federal constitutional right to an abortion, could spark the latest standoff between California and the high court.