Former President Jimmy Carter (D) predicted that the U.S. will eventually switch over to a universal single-payer healthcare system, the Wall Street Journal reported Sunday.

Carter, 92, made the remarks ahead of teaching his Sunday school class in Plains, Ga.

“When I was in the White House, I tried to get Medicare to cover everyone,” he said.

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Carter’s speech comes as Republicans are struggling in their attempt to repeal and replace ObamaCare in the Senate. A procedural vote on their bill is expected on Tuesday.

Single-payer healthcare programs have been gaining traction among members of the Democratic party, with Sens. Elizabeth Warren Elizabeth WarrenJudd Gregg: The Kamala threat — the Californiaization of America GOP set to release controversial Biden report Biden's fiscal program: What is the likely market impact? MORE (D-Mass.) and Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (D-N.Y.), two potential 2020 presidential candidates, both backing the Medicare-for-all program.

Sen. Bernie Sanders Bernie SandersJacobin editor: Primarying Schumer would force him to fight Trump's SCOTUS nominee Trump campaign plays up Biden's skills ahead of Cleveland debate: 'He's actually quite good' Young voters backing Biden by 2:1 margin: poll MORE (I-Vt.) also centered his 2016 presidential bid around universal healthcare, calling for a system that “makes healthcare a right, not a privilege.”

Carter was recently treated for dehydration after he was sent to the hospital while building houses for Habitat For Humanity. He was released the next day and continued his construction work that morning.