President Joe Biden reacted to the debate in a post on X early Wednesday morning.

"America got to see tonight the leader I've been proud to work alongside for three and a half years. Wasn't even close," he said.

Biden was in New York City during the debate and will be attending the 9/11 memorial services at Ground Zero later in the day.

A majority of debate watchers think Harris won the debate against Trump, according to a poll taken by CNN and SSRS after the debate.

On who won the debate, 63% of debate watchers said Harris and 37% said Trump.

The poll has a margin of error of +/- 5.3% points.

CNN said that before the debate, respondents were split 50%-50% on who would win.

In June, their instant poll found that among debate watchers, 33% thought Biden won and 67% thought Trump won.

-ABC News' Oren Oppenheim

Harris put Trump on the defensive early on, claiming viewers were "going to hear from the same old, tired playbook, a bunch of lies, grievances and name-calling." She later took digs at his rallies and was the first to bring up his multiple indictments.

Meanwhile, Trump tried to tie Harris to President Joe Biden as often as he could. "She is Biden," he said as he criticized their economic record.

Harris' gender was not broached during the debate, though her race was. Trump doubled down on false claims about her racial identity, though he said he "couldn't care less."

Read more about the debate highlights here.

During the Harris-Trump face-off, both candidates tried to score points by slinging barbs at each other.

Here are some of their sharp jabs:

Trump: “Wait a minute, I'm talking now, if you don't mind, please. Does that sound familiar?”

Harris: “Donald Trump was fired by 81 million people.”

Harris: “He talks about fictional characters like Hannibal Lecter.”

Read more zingers here.

Fact Check: False

According to the city of Springfield, Ohio, these claims are false. A city spokesperson tells ABC News there have been “no credible reports or specific claims of pets being harmed, injured or abused by individuals in the immigrant community.”

Rumors that migrants from Haiti are stealing and eating animals there have run rampant after a series of claims spread widely online, amplified by social media posts from leading political figures in recent days.

“Additionally, there have been no verified instances of immigrants engaging in illegal activities such as squatting or littering in front of residents' homes. Furthermore, no reports have been made regarding members of the immigrant community deliberately disrupting traffic,” the spokesperson added.
The House Judiciary GOP X account used AI tools to show Trump holding cats and ducks, portraying him as a savior of animals.

One of the main images circulating online, showing a man holding a dead goose, was taken not in Springfield but in Columbus, Ohio, two months ago. The resident who captured the image told ABC News he was surprised to see his image used to “ push false narratives.”

According to the Springfield News-Sun, the Springfield Police Department has not received any reports of pets being stolen and eaten. The city even created a webpage debunking some claims.

Migrants have been drawn to the region because of low cost of living and work opportunities, the city says on its site. The city estimates there are around 12,000 to 15,000 immigrants living in the county, and that the rapid rise in population has strained housing, health care, and school resources. But the city also says that the migrants are in the country legally and that many are recipients of Temporary Protected Status from the federal government.