MIAMI – Eric Swalwell, a 38-year-old Democratic congressman, had a simple argument against his party’s frontrunner: You’re too old, Joe.

Swalwell — one of the presidential hopefuls in the party’s first round of debates — took a shot at the former vice president on Thursday night.

“I was 6 years old when a presidential candidate came to the California Democratic Convention and said it’s time to pass the torch to a new generation of Americans, that candidate was then-Sen. Joe Biden,” said Swalwell, who was wearing an orange ribbon to bring awareness to gun violence.

“Joe Biden was right when he said it was time to pass the torch to a new generation of Americans 32 years ago. He’s still right today.”

Swalwell urged: “Pass the torch!”

The moderators asked 76-year-old former Vice President Joe Biden if he wanted to respond.

“I would,” he said. “I’m still holding on to that torch.”

Biden used the opportunity to list some of his ideas for education policy, including freezing the student debt of low-income earners.

“So folks, there’s a lot we can do, but we have to make continuing education available for everyone,” Biden said.

Seeing that Biden was winding down, both 37-year-old South Bend, Indiana, Mayor Pete Buttigieg and 77-year-old Sen. Bernie Sanders pounced.

“As the youngest guy on the stage, I feel like I ought to contribute to the generation conversation,” Buttigieg urged.

Sanders asserted himself more loudly.

“As part of Joe’s generation. As part of Joe’s generation, let me respond,” Sanders said. “The issue, if I may say, is not generational. It’s who has the guts to take on Wall Street, to take on the fossil fuel industry, to take on big money interests,” Sanders said, as other candidates attempted to shout over him.

Finally the moderators in Miami handed the floor over to 54-year-old Sen. Kamala Harris.

“Hey guys, you know what, America does not want to witness a food fight,” Harris said. “They want to know how they’re going to put food on their table.”