Senate Minority Leader Chuck Schumer, D-NY, and Sen. Kirsten Gillibrand, D-NY, could be facing a major challenger in their next Senate races -- Rep. Alexandria Ocasio-Cortez, D-NY.

Top Democrats suspect that the freshman congresswoman will primary either Schumer in 2022 or Gillibrand in 2024, according to a report from Axios, Gillibrand, who is currently running for president, just won reelection during the 2018 midterms after vowing she would serve her full six-year term.

If AOC runs against the two party powerhouses -- and wins -- it wouldn't be the first time she toppled a big-name Democrat after she defeated leading lawmaker Joe Crowley, who was the chairman of the House Democratic Caucus a member of Congress for nearly 20 years, during the New York primaries in 2018.

Since then, Ocasio-Cortez has become a household name and is leading the effort in promoting the Green New Deal in hopes of tackling climate change.

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With massive support among progressives, the New York representative is seen as a kingmaker during the 2020 election and is weighing her options on who to back in the presidential race.

Senators Bernie Sanders, I-VT, and Elizabeth Warren, D-Mass, have so far received the highest praise from the self-described Democratic Socialist.

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She has repeatedly blasted former Vice President Joe Biden, most recently for his previous support for the Hyde Amendment, which outlaws federal funding for abortions.

"If your pride is being a moderate centrist candidate, say that," Ocasio-Cortez said last week. "Say, 'I'm proud to be a centrist, I'm proud to be funded by Wall Street. I'm proud to not push as hard as I can on women's rights.' Say it, own it, be it, but don't come out here and say you're a progressive candidate, but at the same time not support repealing something as basic as the Hyde Amendment."