Who's Watching?

Ari Melber:

About nine percent of the U.S. population is checking into convention coverage, according to Nielsen . The share is higher among African Americans -- about 12.7 percent are tuning in to see the first nomination of a black candidate by a major party in American history. Divided by age, the audience for this convention skews towards older Americans. One out of five Americans over age 55 caught some convention programming.

More from Nielsen on their blog.