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Voters in 15 states and one territory are participating in primaries or caucuses on Super Tuesday. On the Republican side, former president Donald Trump is expected to significantly widen his lead in the delegate count over former U.N. ambassador Nikki Haley, with roughly one-third of the delegates that will determine the GOP nomination in play Tuesday. President Biden is expected to dominate on the Democratic side.
Jahi Chikwendiu/The Washington Post
March 5 | Reston, Va.
A voter leaves from voting at Lake Anne Plaza.
Jahi Chikwendiu/The Washington Post
Jahi Chikwendiu/The Washington Post
March 5 | Reston, Va.
David Mead, L, and Nathan Nau guide a voter at Lake Anne Plaza.
Jahi Chikwendiu/The Washington Post
Jahi Chikwendiu/The Washington Post
March 5 | Reston, Va.
Nancy C. prepares to vote with the help of David Mead, officer of election, at Lake Anne Plaza.
Jahi Chikwendiu/The Washington Post
Jahi Chikwendiu/The Washington Post
March 5 | Herndon, Va.
Joyce Gordon, left, and James Pyle, right, make their election choices as election officer Anusha Ghosal, center, passes by at Hutchison Elementary School.
Jahi Chikwendiu/The Washington Post
Jahi Chikwendiu/The Washington Post
March 5 | Midlothian, Va.
A voter waits in line during the Virginia primary at Robious Elementary School.
Matt McClain/The Washington Post
Matt McClain/The Washington Post
March 5 | Midlothian, Va.
Election workers talk to a voter during the Virginia primary at Robious Elementary School.
Matt McClain/The Washington Post
Matt McClain/The Washington Post
March 5 | Midlothian, Va.
Voters fill in their ballots at Robious Elementary School.
Matt McClain/The Washington Post
Matt McClain/The Washington Post
March 5 | Alexandria, Va.
A Super Tuesday voter takes an "I Voted" sticker at Alexandria City Hall.
Kevin Wolf/AP
Kevin Wolf/AP
March 5 | Kennebunk, Maine
A voter enters the polling station.
Michael Dwyer/AP
Michael Dwyer/AP
March 5 | Kennebunk, Maine
Town Clerk Merton Brown, right, gets ready to call time on opening the polls.
Michael Dwyer/AP
Michael Dwyer/AP
March 5 | Kennebunk, Maine
Poll workers hold a meeting before the polls open.
Michael Dwyer/AP
Michael Dwyer/AP
March 5 | Kennebunk, Maine
Voters check in at the polling station.
Michael Dwyer/AP
Michael Dwyer/AP
March 5 | Kennebunk, Maine
A voter fills out a ballot.
Michael Dwyer/AP
Michael Dwyer/AP
March 5 | Kennebunk, Maine
Stickers are laid out at the exit to the polling station.
Michael Dwyer/AP
Michael Dwyer/AP
March 5 | Gloucester, Mass.
Voters cast their ballots at Gloucester High School.
Joseph Prezioso/AFP/Getty Images
Joseph Prezioso/AFP/Getty Images
March 5 | Charlotte, N.C.
Poll workers converse as they prepare to receive voters early in the morning at Mt. Moriah Primitive Baptist Church.
Grant Baldwin/Getty Images
Grant Baldwin/Getty Images
March 5 | Charlotte, N.C.
Voters arrive and check in at Mt. Moriah Primitive Baptist Church.
Grant Baldwin/Getty Images
Grant Baldwin/Getty Images
March 5 | Austin, Tex.
People arrive to vote at Ben Hur Shrine Temple.
Austin American-Statesman/AP
Austin American-Statesman/AP
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Credits
Photo editing and production by Troy Witcher