Sen. Jacky Rosen (D-NV) officially announced her re-election campaign Wednesday morning, giving Senate Democrats a proven incumbent candidate to promote in a tough 2024 map.

Rosen, who served one term in the House before flipping a Senate seat in 2018, is running for her second term. Nevada will be an essential part of the Democrats’ map as the party seeks to maintain control of its one-seat majority, which includes defending senators in three states the party lost in the 2020 presidential election.

In a campaign launch video, Rosen, who has stressed her bipartisan credentials while remaining loyal to Democratic goals, touted her work on the 2021 Bipartisan Infrastructure Law and the 2022 Inflation Reduction Act. She said a second term would be focused on lowering costs, protecting abortion, safeguarding Social Security and Medicare, and tackling the climate crisis.

“What happens in Nevada in 2024 could once again decide control in the Senate,” Rosen said in the video, referring to Sen. Catherine Cortez Masto’s (D-NV) narrow 2022 victory. “Nevada is always a battleground, and this Senate race will be one of the toughest in the country.”

No major Republicans have declared candidacies yet.

Rosen already has a record war chest to help her candidacy, with $4.4 million in the bank at the beginning of 2023.