At first, it seemed like Perez was voicing one more generalized regret for the 2016 election that put Donald Trump in the White House—the squandered opportunity that abruptly ended the Democrats’ hold on the presidency and immediately put at risk its policy gains of the previous eight years.

Perez, however, soon made clear that his apology was much more specific. “We lost elections not only in November 2016, but we lost elections in the run-up because we stopped organizing,” he said. “We stopped talking to people.

“We took too many people for granted,” Perez continued, “and African Americans—our most loyal constituency—we all too frequently took for granted. That is a shame on us, folks, and for that I apologize. And for that I say, it will never happen again!”

Applause broke out before Perez could even finish his apology, heads nodding in acknowledgment and appreciation.