"Drumming fear around socialism is the GOP’s big play, & it’s failing, bc capitalism = GoFundMe as our national healthcare system," she tweeted.
Ocasio-Cortez, who has become the proverbial face of conservative warnings about socialism, also tweeted an article celebrating the fact that the economic system was losing its ability to inspire fear.
She quoted a line that indicated Republicans engaged in an ineffective tactic used during the Cold War. "The 'old-fashioned red-baiting approach, familiar to those of us who lived through the Cold War, doesn’t seem to be working,'" she tweeted.
The article also liberally quoted Bhaskar Sunkara, who edits the Democratic socialist magazine Jacobin and wrote "The Socialist Manifesto." Sunkara previously argued that Democrats should try to take down former Vice President Joe Biden as a 2020 frontrunner because he's not viewed as progressive enough.
The New York congresswoman's tweet came as leading Republicans pressed a narrative that Ocasio-Cortez and leading presidential candidates were promoted socialist policies.
“We see them as a homogenous group of socialists,” Kayleigh McEnany, the Trump campaign’s national press secretary, previously told Fox News while discussing the 2020 primary field. Communications Director Tim Murtaugh similarly said the Democratic field, was “one big socialist organism with 22 heads.”
Many 2020 candidates endorsed Ocasio-Cortez's "Green New Deal" and shared her support for "Medicare-for-all" -- two policies that would involve massive government intervention of the sort that Republicans call "socialist."
He has repeatedly expressed support for socialist movements and countries and pushed policies that would dramatically change the government's role in large sectors of the economy. He also gave a speech outlining his vision of "Democratic socialism" and mocked criticism as unrealistic.
The issue seemed to resurface when Sanders praised efforts by the Chinese government to fight "extreme poverty."
"What we have to say about China in fairness to China and its leadership is -- if I’m not mistaken -- they have made more progress in addressing extreme poverty than any country in the history of civilization," Sanders told The Hill on Tuesday. "So they’ve done a lot of things for their people."
Fox News' Alex Pappas contributed to this report.