If Kamala Harris becomes the new Democratic pick for presidential candidate in 2024, she’ll need to choose a vice president, and fast.

President Joe Biden made a blockbuster announcement Sunday that he will bow out of the race for reelection. He has endorsed Harris as his replacement. One of the biggest questions: If she is nominated at the August convention, who will serve as her second?

Here are names of potential picks from influential states:

Arizona Sen. Mark Kelly, who rapidly on Sunday endorsed Harris.

California Gov. Gavin Newsom, who has also been floated as a potential challenger to Harris.

Georgia Sen. Raphael Warnock, who could draw Black voters in the key swing state, where he’s proven he can beat Republicans.

Illinois Gov. J.B. Pritzker, a deep-pocketed billionaire who has already stated support for Harris.

Kentucky Gov. Andy Beshear, who as a Democrat has won his deep-red state twice.

Michigan Gov. Gretchen Whitmer, a popular Democratic governor in a swing state who has said she would “never say never” to serving on a two-woman ticket.

North Carolina Gov. Roy Cooper campaigned with Harris in his state recently. In an interview on CNN, former Democratic National Committee chairman Howard Dean threw his support behind the Harris-Cooper ticket, saying, “I think we would pick up North Carolina as a result.” The state voted for former President Donald Trump in 2020.

Pennsylvania Gov. Josh Shapiro is another popular governor in a swing state, although he’s only been in office for two years.

Of course, voters across the country may discuss — and ask their delegates — to consider other possibilities. “Harris Woodfin 2024,” one resident commented on a Sunday post from Birmingham Mayor Randall Woodfin commending Biden and supporting Harris.