“What I can’t understand is why anyone would think that Donald Trump will shake things up in a way that is good for you, because there is absolutely no evidence that this man thinks about anybody but himself,” Obama continued, while addressing attendees gathered in the Atlanta suburb off Clarkston.

Harris picked up on Obama’s remarks, and insisted that electing former President Donald Trump would have negative and serious consequences for the United States.

She insisted that her policy positions on healthcare and the economy and plans to bolster small businesses were superior to Trump’s, and called bans she alleges Trump would place on abortion “immoral.”

“I do believe Donald Trump to be an unserious man and the consequences of him ever being president again are brutally serious,” Harris continued. “These are just some of the consequences of the Trump abortion bans and what he does and what he’s likely to do.”

Former Trump staffers have recently raised concerns about his increasingly erratic behavior and his overall mindset, including recent statements by former Trump chief of staff John Kelly, who said the former president fits “into the general definition of fascist.”

Obama and Harris have been acquainted for the better part of two decades, dating to an informal network of up-and-coming Black politicians when Obama was an Illinois state senator and she was a district attorney in California.

Rock superstar Springsteen headlined the Clarkston event, and between songs told the crowd: “I want a president who reveres the Constitution, who does not threaten but wants to protect and guide our great democracy.”

The event kicked off a series of Springsteen concerts in Georgia leading up to Election Day.

Harris was also also joined by actor Samuel L. Jackson, director Spike Lee and filmmaker and actor Tyler Perry.

The campaign event was streamed online at C-Span.

With 12 days to go before the election and Georgia among seven swing states that could decide the election, the campaign event was an important stop for Harris.

Harris held a “CNN town hall” event hosted by CNN’s Anderson Cooper Wednesday evening, during which she declared her opponent and former President Donald Trump a “fascist.”

Trump campaigned in Tempe, Ariz., and Las Vegas on Thursday. While in Ariz., Trump touched on housing and mortgage prices, inflation and other economic policies. He claimed in his remarks that housing prices are up 32%, a trend for which he blamed Harris.

“Republicans will reduce mortgage rates by slashing Inflation, open limited portions of Federal Lands to allow for new home construction, promote homeownership through Tax Incentives and support for first-time buyers, and cut unnecessary Regulations that raise housing costs,” a release from Trump said. “Kamalanomics has made the American Dream of homeownership unreachable for young Americans and families across Arizona,” he continued.