The Democratic National Committee headquarters in Washington, which also houses the Democratic Congressional Campaign Committee. The computer networks of both the DNC and DCCC have been hacked; investigators say Russia is the likely culprit. Paul Holston/AP hide caption

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Paul Holston/AP

Democratic presidential nominee Hillary Clinton takes the stage at the Democratic National Convention in Philadelphia Wednesday night following President Obama's speech. Bill Clark/CQ-Roll Call Group via Getty Images hide caption

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Bill Clark/CQ-Roll Call Group via Getty Images

Clarissa Rodriguez of Texas, 17, and Ruby Gilliam of Ohio, 93, recite the Pledge of Allegiance during the first day of the Democratic National Convention in Philadelphia on Monday. They are the youngest and oldest delegates at the convention. J. Scott Applewhite/AP hide caption

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J. Scott Applewhite/AP

DNC's Oldest Delegate's Life Spans Early Days Of Suffrage To Historic Nomination

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Vice President Joe Biden talks to students from Eagle Academy for Young Men during a walk at the Democratic National Convention on Tuesday. He will speak Wednesday night. Jessica Kourkounis/Getty Images hide caption

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Jessica Kourkounis/Getty Images

Demonstrators held signs outside the Democratic National Convention on Monday in Philadelphia. On Sunday, Debbie Wasserman Schultz, announced she would step down as DNC chairwoman at the end of the party's convention, after thousands of internal DNC emails were posted by the website Wikileaks. John Minchillo/AP hide caption

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John Minchillo/AP

Philly.fyi Executive Director Billy Taylor holds permits to most of the park across from the convention. Jeff Brady/NPR hide caption

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Jeff Brady/NPR

Rallies, Marches And A 'Fart-In': Philadelphia Gets Ready For The DNC

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Democratic National Committee Chairwoman Debbie Wasserman Schultz said the DNC is working to secure its network as quickly as possible. She's shown here in 2014. Mandel Ngan/AFP/Getty Images hide caption

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Mandel Ngan/AFP/Getty Images

Russian Hackers Penetrate Democratic National Committee, Steal Trump Research

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Bernie Sanders's presidential campaign sued the DNC on Friday to regain access to its voter data files. But access was restored out of court after the DNC says the campaign provided them with information about data they had breached from rival Hillary Clinton's files due to a software glitch. Manuel Balce Ceneta/AP hide caption

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Manuel Balce Ceneta/AP

Sen. Bernie Sanders, an independent from Vermont and 2016 Democratic presidential candidate, in Washington, D.C., on Wednesday. Bloomberg via Getty Images hide caption

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Bloomberg via Getty Images

Sanders Campaign: DNC Blocking Voter Data Is Overkill, Breach Of Contract

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Former Secretary of State Hillary Rodham Clinton and former President Clinton huddle under an umbrella during inaugural ceremonies for Virginia Gov. Terry McAuliffe in Richmond on Jan. 11. Patrick Semansky/AP hide caption

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Patrick Semansky/AP