Rep. Katie Porter (D-Calif.) announced on Tuesday that she will run for the Senate seat currently occupied by Sen. Dianne Feinstein (D-Calif.) in 2024, in what could set off a fierce primary battle in the Golden State.

“California needs a warrior in the Senate — to stand up to special interests, fight the dangerous imbalance in our economy, and hold so-called leaders like Mitch McConnell accountable for rigging our democracy,” Porter said in a tweet announcing her Senate run.

“Today, I’m proud to announce my candidacy for the U.S. Senate in 2024,” she added.