Do Joe Biden’s “you ain’t black” comments ultimately matter?

Former Vice President Joe Biden is no stranger to the political gaffe. And on Friday, he stepped in it once again.

After putting it off for months, Biden finally sat down for an interview on “The Breakfast Club,” a radio show that’s earned a place in the black cultural canon for its buzzy, confrontational interviews of entertainers and political leaders. While the 18-minute interview with host Charlamagne Tha God was tense overall, it wasn’t until its final moments that Biden uttered the sentence that would set social media aflame: “If...