The vice president is likely to debut her pick Tuesday, multiple outlets reported, after she reportedly interviewed Pennsylvania Gov. Josh Shapiro, Minnesota Gov. Tim Walz and Arizona Sen. Mark Kelly during a series of meetings Sunday.

Several other candidates could still be in the mix despite Sunday’s interviews, including Kentucky Gov. Andy Beshear, Illinois Gov. J.B. Pritzker and Transportation Secretary Pete Buttigieg, according to the New York Times, Washington Post and CNN.

Harris’ team reportedly vetted about a dozen people, including the top contenders as well as Commerce Secretary Gina Raimondo, Michigan Gov. Gretchen Whitmer and North Carolina Gov. Roy Cooper (though Cooper and Whitmer have publicly dismissed the idea).

Shapiro, who like Harris, previously served as his home state’s attorney general, is popular in Pennsylvania and could help shore up support in a must-win Rust Belt state for Democrats.

Kelly—a former astronaut and husband of former Rep. Gabby Giffords, D-Ariz.—also represents a swing state Biden narrowly won in 2020, and he defeated Trump-backed Republican Blake Masters in the 2022 midterm to help Democrats maintain control of the Senate.

Walz, who chairs the Democratic National Convention rules committee, leads a midwestern state with fairly close elections—but he told CBS Minneapolis affiliate WCCO last week becoming vice president is something he would “be a little nervous about.”

Kentucky’s popular governor, Beshear, who has won his deep-red state twice, is another potential pick for the No. 2 spot on a new Democratic ticket, though Democrats would still be unlikely to win Kentucky.

California Gov. Gavin Newsom, Colorado Gov. Jared Polis and Pritzker are other names commonly floated, but they could be at a disadvantage since they represent blue states, while Raimondo—who served as Rhode Island governor—is also reportedly under consideration.

Sen. Amy Klobuchar, D-Minn., and Buttigieg (who both endorsed Harris) are other potential candidates who have national name recognition from their 2020 presidential campaigns.

Sen. Raphael Warnock, D-Ga., if chosen, could also draw Black voters in the key swing state, where he’s proven he can beat Republicans—twice—in closely contested races, but if he leaves the Senate, his state’s Republican governor would pick his successor.

Maryland Gov. Wes Moore is another rising star in the Democratic party, but he said Monday he has “no intention” of leaving his current role.