Twitter rewards viral moments, but that doesn’t mean the Democratic primary electorate does. “It’s not like we’re going into the debate thinking: ‘How are we gonna light ourselves on fire to get attention and be the takeaway?’” said one Democratic campaign aide.

Just look at the way Kamala Harris has gone viral for her questioning of Trump’s cabinet secretaries in recent months. That questioning was certainly planned, but knowing it would go viral? Not so much.

“You want complex carbs not a sugar rush,” said one Democratic strategist who’s talked with various campaigns. “Compared to Warren who’s been steadily building a narrative of actions and policies, that’s more of structured support than the sugar rush of support that Mayor Pete and Beto are getting from viral moments.”