As Sen. Kirsten Gillibrand (D-NY) prepares for her second reelection bid, the New York Democrat could face a number of primary challengers from other members of her party, according to reports.

Gillibrand launched her reelection bid last week, seeking a third term to the office she has held since 2009, when she was appointed by then-Gov. David Paterson (D-NY). However, some of Gillibrand’s more liberal colleagues in Congress may be mulling a primary challenge, campaign insiders told the New York Post.

One such challenger who might be considering a bid against Gillibrand is firebrand Rep. Alexandria Ocasio-Cortez (D-NY), who has positioned herself as one of the most well-known members of her party. It’s not clear whether Ocasio-Cortez is considering a Senate run, but some political strategists say she’d have a fair shot.

“She could do it. Oh, my God, could she do it,” Ryan Adams, a Democratic consultant, told the New York Post.