Jill Biden protected her husband, the Democratic presidential candidate Joe Biden, as protesters stormed the stage at his Super Tuesday victory speech in Los Angeles.

On Wednesday morning, "Jill Biden" and "Dr. Biden" were trending on Twitter as videos and pictures of the incident went viral on social media.

The protesters represented Direct Action Everywhere, an animal-rights group based in California.

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Jill Biden, the wife of the Democratic presidential candidate Joe Biden, protected him as protesters stormed the stage at his Super Tuesday victory speech in Los Angeles.

As protesters with signs reading "Let Dairy Die" ran on stage, Jill Biden quickly put herself between them and her husband, the former vice president.

She put out her hands to keep the protesters at bay until they were forcibly removed by security. Symone Sanders, Joe Biden's senior adviser, also rushed onto the stage and helped drag one of the protesters off; she was praised online for her heroism.

On Wednesday morning, "Jill Biden" and "Dr. Biden" were trending on Twitter as photos and videos of the incident went viral on social media.

The protesters represented Direct Action Everywhere, an animal-rights group based in California.

Joe Biden was in the middle of celebrating his wins in seven of the 14 primaries on Super Tuesday — an unexpectedly strong outcome for a candidate who was struggling to break through in a crowded field of moderates before Sen. Amy Klobuchar and former Mayor Pete Buttigieg dropped out this week.

The group crashed the stage at a rally for Sen. Bernie Sanders last month.

"Bernie, I'm your biggest supporter, and I'm here to ask you to stop propping up the dairy industry and to stop propping up animal agriculture," one protester said, adding "I believe in you" before the mic cut out.