Second night of CNN Democratic debate draws 10.7M viewers

Second night of CNN Democratic debate draws 10.7M viewers
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CNN's broadcast of the second night of Democratic presidential debates this week attracted 10.7 million viewers, according to final ratings compiled by Nielsen Media Research.

Another 3.1 million people watched the event broadcast from the Fox Theatre in downtown Detroit on Wednesday night via the CNN Digital livestream, according to the network.

The second of two debates was watched by 7.4 million fewer people than the second of two Democratic debates broadcast last month by NBC, MSNBC and Telemundo. That event in Miami attracted 18.1 million viewers.

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The first night of debates Tuesday drew 8.7 million viewers to CNN's broadcast, with another 2.8 million watching on the channel's digital stream, according to Nielsen Media Research figures.

Wednesday night's event from the Fox Theatre in the Motor City featured Democratic front-runner Vice President Joe BidenJoe BidenPossible GOP challenger says Trump doesn't doesn't deserve reelection, but would vote for him over Democrat Joe Biden faces an uncertain path The Memo: Trump pushes back amid signs of economic slowdown MORE in an anticipated rematch with Sen. Kamala HarrisKamala Devi HarrisJoe Biden faces an uncertain path Biden: 'There's an awful lot of really good Republicans out there' Fighter pilot vs. astronaut match-up in Arizona could determine control of Senate MORE (D-Calif.), though both candidates were left on the defensive for most of the debate.

Biden was hammered repeatedly from many of the other nine candidates on stage, particularly Sen. Cory BookerCory Anthony BookerThe Hill's Campaign Report: Battle for Senate begins to take shape Steve King to Gillibrand: Odds of me resigning same as yours of winning presidential nomination We need a climate plan for agriculture MORE (D-N.J.) and Harris, while several candidates went after Harris on criminal justice issues based on her time serving as California's attorney general.

Biden has maintained a commanding lead in the RealClearPolitics index of polls with 32.2 percent support, though new surveys conducted after the back-to-back debate nights in Detroit have yet to be released.

During the last election cycle, CNN delivered 15.5 million viewers for its broadcast of the first Democratic debate of the primary season featuring Hillary ClintonHillary Diane Rodham ClintonLewandowski on potential NH Senate run: If I run, 'I'm going to win' Fighter pilot vs. astronaut match-up in Arizona could determine control of Senate Progressive Democrats' turnout plans simply don't add up MORE, Sen. Bernie SandersBernie SandersJoe Biden faces an uncertain path Bernie Sanders vows to go to 'war with white nationalism and racism' as president Biden: 'There's an awful lot of really good Republicans out there' MORE (I-Vt.) and former Maryland Gov. Martin O'Malley (D) in October 2015.

The most-watched primary debate in history occurred in August 2015, when more than 24 million people tuned in to Fox News for what was Donald TrumpDonald John TrumpPossible GOP challenger says Trump doesn't doesn't deserve reelection, but would vote for him over Democrat O'Rourke: Trump driving global, U.S. economy into recession Manchin: Trump has 'golden opportunity' on gun reforms MORE's first debate as a candidate in Cleveland.