Bernie Sanders finds his “You’re likable enough, Hillary.”

The PBS Democratic debate has substantive so far—Hillary Clinton and Bernie Sanders have been going back and forth about the cost of their respective health care proposals, and how realistic those proposals are. But social media managers around the country got a gift when Clinton ended her time by saying, “Once I’m in the White House, we’ll get this done,” to which Sanders snapped back, “Secretary, you’re not in the White House yet.

It was a weird moment—Clinton was sly and cocky, but Sanders one-upped her by being condescending and snarky. The crowd didn’t like it at all. In a different debate—the more theatrical Republican ones maybe—the line might have killed. But it just felt out of place in tonight’s chill, stately debate.