The fact that America's 46th president is a serial liar is hardly newsworthy, given Joe Biden's plethora of lies on everything from his tall tales about "Corn Pop" to his eldest son Beau dying in Iraq to his denials about his involvement in his wayward son Hunter's controversial business dealings.

But sometimes, Biden's lies are just so utterly unbelievable that they're just too damn funny not to write about. On Wednesday, the addled 80-year-old president appeared to tell one such whopper.

When news broke on Wednesday that Wagner Group warlord Yevgeny Prigozhin, whose forces challenged the rule of Russian dictator Vladimir Putin just months ago, was killed in a plane crash outside Moscow that left 10 people dead, you would've had to be living under a rock not to hear about it.

Apparently, Joe Biden was living under one such rock. Au contraire, Joe told the gathered media. 

On the contrary, our fearless leader was unaware of the controversial death of Prigozhin because he was... wait for it... "working out" — for an hour and a half, no less. 

One "X" user nailed it:

He’s too busy on vacation to be attentive to major world events. "Working out" means lifting ice cream to his mouth repeatedly.

Or in this case, it appears that the so-called "Leader of the Free World" was lifting iced tea.

As I suggested, the worst part is Biden appears to believe that the American public buys his silly crap — or is too delusional to understand the ridiculousness of his excuses.

REPORTER: "Mr. President, do you have a reaction to the plane crash in Russia?" 

BIDEN: "I don't know enough to know the answer. I've been working out for the last hour and a half."

Really, Joe? Really?

REPORTER: "Mr. President, do you have a reaction to the plane crash in Russia?"

BIDEN: "I don't know enough to know the answer. I've been working out for the last hour and a half." pic.twitter.com/m91nyED2Sw

— Breaking911 (@Breaking911) August 23, 2023

Look, if Biden was really "working out" — in the manner an 80-year-old man in his physical condition would work out — more power to him. But given his physical condition and multitudinous lies, please.  

Anyway, the video of Biden walking is, in my not-so-humble opinion, in stark contrast to a person of any age who's capable of actually "working out" for 90 minutes.

"Ohh, it's the deep burn. Oh, it's so deep. Oh, I can barely lift my right arm cause I did so many. I don't know if you heard me counting. I did over a thousand."

Sorry, dude — we're not buyin' it.

"Ohh, it's the deep burn. Oh, it's so deep. Oh, I can barely lift my right arm cause I did so many. I don't know if you heard me counting. I did over a thousand." https://t.co/Ns7RFuQlK3

— Matt Wolking (@MattWolking) August 23, 2023

Many of the commenters suggested Biden's claimed 90-minute workout was really...

More like he's been napping for the last hour and a half

Given the spring in Joe's step, I'd bet on the nap.

More like he’s been napping for the last hour and a half.

— Nick D'Agostino (@basedNickDags) August 23, 2023

After watching Biden's latest excuse for being totally out of the loop on a major news story of the day, I was reminded of the "Saturday Night Live" character played by Jon Lovitz. 

What was his name? Tommy Flanagan? Yeah, that's the ticket.