"It'll be straightened out and as you know, it's all about states' rights," the former US president told supporters and journalists after landing in Atlanta for a fundraiser.

"It'll be straightened out, and I'm sure that the governor and everybody else are going to bring it back into reason and that'll be taken care of, I think, very quickly."

Trump issued a video statement this week declining to endorse a US-wide abortion ban and saying he believes limits should be left to the states.

His statement angered some religious conservatives and energised allies of President Joe Biden who see abortion rights as one of Trump's weaknesses.

The Arizona Supreme Court ruling on Tuesday cleared the way for the enforcement of an 1864 law that bans abortion at all stages of pregnancy with no exceptions for rape or incest and allows abortions only if the mother's life is in jeopardy.

The decision drastically altered Arizona's legal landscape for terminating pregnancies.

The court suggested doctors can be prosecuted under the Civil War-era law although the opinion written by the court's majority did not say that.

Trump maintains he is proud that the three Supreme Court justices he nominated voted to overturn Roe v. Wade, saying states will have different restrictions.

He supports three exceptions: in cases of rape, incest and when the life of the mother is at risk.

He also spoke about a Florida law that bans abortions after six weeks, saying that "is probably maybe going to change also".

Last week, the state Supreme Court upheld the state's ban on most abortions after 15 weeks of pregnancy and the ruling also clears the way for the state to ban abortions after six weeks of pregnancy.

Trump ignored questions about how he plans to vote himself on Florida's pending state constitutional amendment that would enshrine abortion access as a right of his home state's residents.

He did not elaborate on what he thinks the level of restrictions and access should be in Arizona or any other state.

Australian Associated Press