Fifteen million people watched the first Democratic debate last night. Of that total, 4.8 million people were between the ages of 25 and 54, the highest viewership ever for a Democratic debate in that age group. The highest-rated Democratic presidential primary debate before last night was in 2008, which drew 10.7 million viewers.

Another 980,000 tuned into live streams of last night’s debate on CNN’s website, mobile apps and Apple TV at the peak of the debate, setting another record. At the last CNN GOP debate, the peak concurrent streams topped out at 921,000.

For more on this story, click CBSNews How many people watched the first Democratic debate?

Watch our commentary on last night’s debate in contrast to the Republican debates: