Arizona voters will decide on Election Day whether to establish a right to abortion in the state Constitution. The ballot measure is a major victory for Democrats, who have used the issue of abortion to energize their voters.

In the two years since the Supreme Court overturned Roe v. Wade, abortion rights groups have prevailed in all seven states that have put the issue of how to regulate the practice directly to voters. Now, Democrats are hoping to carry that momentum into a battleground state that is critical to the presidential election as well as the control of the Senate.

“Poll numbers for abortion rights are higher than poll numbers for Kamala Harris,” my colleague Kate Zernike, who covers abortion, told me. “In Arizona, Democrats think this ballot measure can really help them draw more voters.”

A similar question will appear on the ballot in Missouri, state officials there said today. But the stakes are very different, Kate said. Harris is unlikely to win the state even with the measure on the ballot, but the outcome would send a message about support for abortion access in red states. If voters pass the measure, Missouri would become the first state where voters overturned a near-total ban, radically reshaping access for millions of residents.

Here’s what else to know:

• Tim Walz, Harris’s running mate, spoke to a trade union in Los Angeles for his first solo campaign event since joining the Democratic ticket.

• The police said a man had broken into a Trump campaign office in Virginia.

• Elon Musk interviewed Donald Trump last night for more than two hours, asking softball questions to which Trump responded with a number of inaccurate claims.

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