CHANDLER, Arizona — Vice President Kamala Harris invoked late Arizona Republican Sen. John McCain‘s thumbs-down moment that sunk Republican efforts to repeal Obamacare in 2017 during her second visit to the state in two weeks as she seeks to court GOP and independent voters.

Speaking to voters packed inside an event center on the Gila River Indian Reservation, Harris recalled the night the Arizona senator bucked his party’s leadership and then-President Donald Trump by joining two centrist Republicans to scuttle the repeal of Obamacare.

“It required one more vote to keep it intact, and that vote was the late great John McCain,” Harris said to applause and boisterous cheers. “A great American, a war hero, John McCain.”