A new hashtag has begun.

Red Alert Politics reports.

#ToneDownForWhat: Millennials slam Hillary for refusing to debate Bernie

Despite all their pandering, Hillary Clinton and her campaign do not know how to talk to millennials, especially after her aide told CNN that she won’t debate Sanders until he watches his tone.

“This is a man who said he’d never run a negative ad ever. He’s now running them. They’re planning to run more,” Clinton strategist Joel Benenson told CNN on Monday. “Let’s see the tone of the campaign he wants to run before we get to any other questions.”

The response infuriated thousands of Sanders supporters who took to Twitter to insult and mock Clinton for being “a coward,” and used the hashtag #ToneDownForWhat.