Photos: Democratic presidential debate

Democratic presidential candidates, from left, former Sen. Jim Webb of Virginia, Sen. Bernie Sanders of Vermont, former Secretary of State Hillary Rodham Clinton, former Maryland Gov. Martin O'Malley and former Rhode Island Gov. Lincoln Chafee, take the stage before the CNN Democratic presidential debate in Las Vegas.

Democratic presidential candidates, from left, former Sen. Jim Webb of Virginia, Sen. Bernie Sanders of Vermont, former Secretary of State Hillary Rodham Clinton, former Maryland Gov. Martin O’Malley and former Rhode Island Gov. Lincoln Chafee, take the stage before the CNN Democratic presidential debate in Las Vegas.

(John Locher / Associated Press)

Oct. 13, 2015 3:56 PM PT

Democratic presidential debate

The candidates on stage before Democratic debate in Las Vegas.

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Democratic presidential debate

Hillary Rodham Clinton speaks during the Democratic presidential debate.

(John Locher / Associated Press)

Democratic presidential debate

Martin O’Malley listens as Lincoln Chafee speaks during the debate.

(John Locher / Associated Press)

Democratic presidential debate

Bernie Sanders makes a point during the debate.

(John Locher / Associated Press)

Democratic presidential debate

Hillary Rodham Clinton speaks during the Democratic presidential debate in Las Vegas.

(John Locher / Associated Press)

Democratic presidential debate

Bernie Sanders and Hillary Rodham Clinton.

(John Locher / Associated Press)

Democratic presidential debate

Martin O’Malley speaks during the debate.

(John Locher / Associated Press)

Democratic presidential debate

Lincoln Chafee speaks during the Democratic presidential debate in Las Vegas.

(John Locher / Associated Press)

Democratic presidential debate

Jim Webb speaks during the Democratic presidential debate in Las Vegas.

(John Locher / Associated Press)

Democratic presidential debate

Members of the audience wait for the beginning of the first Democratic presidential debate in Las Vegas.

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Democratic presidential debate

News journalists arrive before the Democratic presidential debate in Las Vegas.

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Democratic presidential debate

A man photographs placards candidate placards before the start of the debate in Las Vegas.

(Frederic J. Brown / AFP / Getty Images)

Democratic presidential debate

A worker holds a sign before the start of the debate.

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Democratic presidential debate

The empty stage before the Democratic debate in Las Vegas.

(Alex Wong / Getty Images)