As Joe Biden basked in the glow of his stunning Super Tuesday primary victories, which established him as the clear front-runner for the Democratic nomination, he took the stage to address supporters in Los Angeles. At one point amidst the celebration, he turned around and appeared to confuse his wife, Jill, and his wife’s sister, Valerie, who had changed places on the stage while Biden wasn’t looking.

The passing, lighthearted moment was hardly newsworthy, especially given the night’s electoral importance, but one Washington Post reporter was quick to suggest on Twitter, “Biden mixing up his wife and his sister is the kind of gaffe that will get more attention now that there are a lot fewer candidates in the race.”

Read the rest of Eric Boehlert’s piece at PressRun.