Jon Stewart said what we were all thinking about Biden's age

• Jon Stewart has returned to "The Daily Show."
• On his first day back, he dedicated much of his monologue to President Joe Biden's age.

Jon Stewart has returned, and boy, does he have things to say.

On his first day back behind the desk at "The Daily Show," he came out swinging on the topic of the two presidential frontrunners' ages.

Sure, we know President Joe Biden, 81, and former President Donald Trump, 77, are old. But as Stewart said on Monday night, the deeply unflattering special-counsel report where Biden's memory was called into question has made both men's ages a hot topic again.

While he acknowledged that Trump's memory hadn't been the best, Stewart didn't hold back on his opinions about Biden's press-conference gaffes and TikTok videos.

Stewart also aired his deep skepticism about the praise Biden's allies heaped on him in the wake of the special counsel's report. That included Vice President Kamala Harris' characterization of Biden as a man who was "in front and on top of it all" and "coordinating and directing leaders who are in charge of America's national security, not to mention our allies around the globe."

"Did anyone film that?" Stewart asked. "Because if you're telling us behind the scenes, he's sharp and full of energy, and on top of it, and really in control, and leading, you should film that. That would be good to show to people, instead of a TikTok where he goes 'chocolate-chip cookie!'"

Some observers accused Stewart of equating the aging president with his opponent. Stewart did, however, dedicate time in his monologue to outlining precisely the ways in which Biden was not Trump.

And he did outline Trump's many problems, chiefly the fact he's a man who's been indicted four times and remains mired in a veritable cesspool of legal woes.