If the U.S. Supreme Court overturns the 45-year-old Roe v. Wade decision, Arizona could be one of the first states in the nation to ban abortion.

President Donald Trump is just three days away from revealing his pick to succeed retiring Justice Anthony Kennedy on the high court.

Trump's nominee is widely expected to oppose a woman's right to an abortion, likely tilting the court to a solid majority that would vote to reverse the Roe decision.

Arizona is one of just 10 states that still have laws on the books banning abortion, according to the Guttmacher Institute.

The ban was declared unconstitutional in 1973, after the Roe decision.

What would it take to restore the ban in a post-Roe world?

"We've looked at that scenario for years," Cathi Herrod, Arizona's leading crusader against abortion, said in a phone interview Friday.

But she added: "No one can give you a definitive answer on what will happen in that scenario."

Herrod cautions that the fate of the ban depends entirely on the how the court writes an opinion overturning Roe.

Arizona's ban on abortion dates to territorial days in 1901—11 years before Arizona became a state.

The ban did allow abortions to save a woman's life.