Elizabeth Warren’s presidential campaign is breaking ground in Colorado with new field offices opening in Denver and Colorado Springs on Wednesday, a major step in expanding operations in the state ahead of the March 3 Super Tuesday primary.

Warren’s office openings come in the wake of the campaign’s announcement last week that PaaWee Rivera, a Tribal citizen of the Pueblo of Pojoaque who worked on her 2018 Senate campaign in Massachusetts, will serve as state director for the Colorado campaign.

Opening events at the new offices Wednesday will feature trainings and show volunteers how to get involved, the campaign said in a press release.

Bernie Sanders has also ramped up his investment in Colorado ahead of the primary. Last week, Sanders tapped Tim Dickson, a local campaign veteran who recently fought conservative recall efforts against Democratic state lawmakers, as state field director for his Colorado campaign. The campaign hired Pilar Chapa as state director in June.

Early polling of Colorado voters showed a three-way race between Warren, Sanders, and Joe Biden, with Sanders, who won the state’s 2016 presidential primary, leading by a slim margin.