Former Vice President Joe Biden has a message for the millennial generation: Stop complaining if you aren’t going to engage with politics.

The 2020 Democratic presidential contender stood by the skepticism he expressed last year when asked about young adults’ belief that they face outsize hurdles to secure housing and pay off debt. “I have no empathy for it. Give me a break,” Biden said in January 2018.

Asked to explain what he meant, Biden began talking about his personal experience growing up with “very modest means” and how he felt upon learning about a study that found relatively few young people today would consider running for political office.

“We have an obligation to get engaged,” Biden said at Saturday’s AFSCME forum, co-moderated by HuffPost. “You all have an obligation to get engaged.”

“Don’t tell me how bad it is. Change it. Change it. Change it,” he said.

He added: “My generation did it.”

Biden drew some criticism the first time he went after millennials, more than a year before he announced his candidacy. Conservative New York Times opinion writer and climate denier Bret Stephens later sided with Biden in a column criticizing the millennial generation, which Stephens said specializes in “histrionic self-pity and moral self-righteousness.”

As HuffPost’s Michael Hobbes reported in 2017, there is a large amount of research and data that paints a bleak financial future for young people, many of whom are already reporting that they’re finding themselves priced out of the housing market.

Although Biden has consistently polled highest among the wide field of 2020 Democratic presidential contenders, his supporters skew older and more moderate.

At the forum, he went on to say, “I just don’t want people telling me on a college campus, ‘Oh, woe is me, I’ve got it so bad.’ … Come on.”