Dr. Jill Biden, First Lady Melania Trump and the President’s Family Look on at First Debate

Donald Trump and Joe Biden Go Head-to-Head in First Presidential Debate

Tuesday night's debate was the first of three scheduled between Biden and Trump

On Tuesday night, the presidential candidates' families were in the same room for the first time this campaign season as President Donald Trump and Democratic nominee Joe Biden engaged in an often contentious debate.

Both Biden and Trump's spouses joined them on stage after the heated hour-and-a-half event, which saw Trump regularly try to talk over his rival while Biden responded with open disdain for his "unpresidential" behavior.

At night's end, former Second Lady Dr. Jill Biden wore a mask as she walked on stage to hug and kiss her husband after First Lady Melania Trump stood next to the president and they held hands.

Trump's adult children — Donald Trump Jr., Eric Trump, Ivanka Trump and Tiffany Trump — all sat in attendance with the first lady, who wore a black pinstripe suit and did wear a protective face mask as she arrived (but later took it off).

The masks were largely symbolic, likely in recognition of experts' advice for the public to wear them, since everyone at the debate was tested for COVID-19.

The issue of face-coverings has become increasingly politicized as the president has given contradictory opinions about their value — something that came up on the debate stage.

The families for both candidates sat distant from one another in the audience, which had been slimmed down and spaced out due to health recommendations.

getty images (2) First Lady Melania Trump (left) and former Second Lady Dr. Jill Biden at Tuesday night's presidential debate

SAUL LOEB/Getty Images Former Second Lady Dr. Jill Biden (left) at Tuesday night's debate

RELATED: The First Presidential Debate Is Live: The Highlights (So Far) as Biden and Trump Go Head-to-Head

JIM WATSON/Getty Images

Ivanka Trump, a White House senior adviser and the president's oldest daughter, tweeted a photo of her, her stepmom, sister Tiffany and her sister-in-law, Lara Trump, all wearing masks before the event.

″Let's go!″ Ivanka, 38, wrote.

The Trumps were not seen wearing masks during or after the debate, while Dr. Biden wore one both during and after the event ended. (Tiffany was seen wearing one while in the audience shortly before the debate began.)

″Joe's ready," Dr. Biden tweeted before the event, along with a pair of heart emojis.

The former second lady wore a green, long-sleeved dress, which she changed into prior to the event, having traveled to Ohio earlier in the night after campaigning for her husband in Michigan along with Chasten Buttigieg.

On Sunday, Dr. Biden told CNN that her 77-year-old husband was ready to take on Trump, 74, in the opening debate.

"One of the things I'm excited for is when the American people see Joe Biden up there on stage, they're going to see what a president looks like," she said. "Someone who is calm, steady, strong, resilient."

Trump had repeatedly suggested Biden was too frail to successfully face off against him, though Trump more recently claimed without evidence that Biden must be using performance-enhancing drugs (leading to a sarcastic tweet about that from Biden on debate night).

″If you go back and watch some of those numerous debates, he was so bad," Trump told the Washington Examiner of Biden in August. ″He wasn't even coherent.″

JIM WATSON/Getty Images Donald Trump's family looks on during Tuesday night's debate

Win McNamee/Getty Images Donald Trump (left) and Joe Biden at Tuesday night's debate

The candidates' feelings for one another quickly became clear Tuesday night as the debate repeatedly devolved into both of them arguing over one another, as moderator Chris Wallace attempted to redirect their attention to his questions.

Wallace chided Trump for being the one who was ″doing more interrupting.″

At one point, as Trump continuously interjected during Biden's response to a question about climate change, the Democratic candidate forgot Wallace's initial question due to the squabbling.

“I don’t remember all his rantings,” Biden told Wallace, attempting to recall what the moderator had exactly asked.

“I’m having a little trouble myself,” Wallace, 72, said, laughing.

Trump appeared to enjoy his family's support during the debate, for his own part, pointing to them afterwards in the crowd as an unidentified audience member shouted that they believed he was ″the greatest president.″

During the debate, however, Biden told Trump he felt otherwise: “You are the worst president America has ever had."

The next presidential debate will take place Oct. 15 in Miami.