The first, and maybe only, presidential debate between President Joe Biden and former President Donald Trump occurred Thursday in Atlanta.

In a post-debate special, Christina Bellantoni, director of USC's Annenberg Media Center, and Michael Genovese, professor and president of the Global Policy Institute at Loyola Marymount University, joined "Inside the Issues" host Amrit Singh.

"I think it made everyone feel uncomfortable," Genovese said. "And there's a reason why these are two of the least popular candidates in American history."

He added there are three pillars when it comes to analyzing a debate: style, substance, and stamina. 

On style: "Joe Biden just dropped the ball; he fumbled from the beginning," Genovese said. 

On substance, he gave a slight edge to Biden but neither candidate really performed well. 

And on stamina, "Biden looked like he was too old to be president, and Trump looked strong and forceful," Genovese concluded.

Bellantoni had a similar view to Genovese that neither candidate really set themself apart to sway undecided voters. 

"We know that Trump did not tell the truth in a lot of his answers and President Biden failed to really make a case for himself," Bellantoni said.

The candidates' ages — Trump is 78 and Biden is 81 — were a talking point leading up to the debate. 

"We've all seen people declining in age and the way they carry themselves and the way they speak, and it's sort of a moment where you feel sorry for them you want to help them and that's not what you want in your president," Bellantoni said.