White House hopeful Joe Biden has committed to picking a woman as his vice presidential candidate should he win the Democratic nomination, a race he currently leads against Bernie Sanders.

“If I’m elected president, my cabinet, my administration, will look like the country, and I commit that I will in fact appoint a woman to be vice president,” Biden, himself a former vice president, said during a debate against his leftist rival Sanders on Sunday.

Democrat Walter Mondale put Geraldine Ferraro on the ticket in 1984, while Sarah Palin was Republican John McCain’s pick in 2008, but both lost their elections.

“There are a number of women who are qualified to be vice president tomorrow,” the moderate Biden added.The leftist Sanders, for his part, responded by saying that “in all likelihood” he would do the same.

“To me, it’s not just nominating a woman. It is making sure that we have a progressive woman and there are progressive women out there.” Two women have been chosen as running mates for major party nominees.

Prior to her position in the US Senate, the African-American Harris served as the attorney general of California, while Klobuchar is a moderate from the Midwestern state of Minnesota.