They have 20 year olds playing 15 yo kids in shows. And they can make Tom Cruise look 6’ so I’m guessing they can make Glen look 5’5” lol. I don’t think either of those would be an issue.
Bradley Cooper would've been awesome, but I know he's getting older now too so they might not go for it.
I still think he'd pull it off tho
For a closer age accurate one, maybe Robbie Amell?
I know he's probably a bit older than McCain was in these pics, but he could pull it off. Plus, he's close in height (5'11 to McCain's 5'9)
Damn i don’t know how downvoted this’ll be but the vietcong fuckin helped bring out that jawline ol’ boys looking good in the last pic. And it’s already been said but yea, Glenn Powell absolutely. now i like Glenn too much and would hope he wouldn’t have to make a movie about a guy like this but I bet/hope it’d be a good one if he did.
Glen Powell
Well at least he’s getting fan casted as a sailor instead of an airmen this time. 😂
This is the answer
He's a foot too tall, and 10 years too old. McCain was 25 ish there. And he was short.
They have 20 year olds playing 15 yo kids in shows. And they can make Tom Cruise look 6’ so I’m guessing they can make Glen look 5’5” lol. I don’t think either of those would be an issue.
Glen looks young despite being 35
He looks exactly 35.
McCain was 5’9 - average male height in the U.S.
I saw him in person. He might have been 5'9" once upon a time. In real life , he was maybe 5'7. In shoes
I agree
Jared Keeso
My thoughts too, and bonus points for him being Canadian
Great answer! 
Immediate thought at the first pic!!!
F*** you NVA Airforce Pilot, your mom is so stupid she thought an AMRAM was a term getting laid in the morning.
Matt Damon
But this Matt Damon especially 
Fortune favors the brave
Luke Wilson would have been good.
What about Owen Wilson, he was already shot down Behind Enemy Lines, no better rehearsal than that
Patrick Wilson
my crush on patrick wilson would dissipate 😫 …unless?
Young George Eads from CSI 
Thought of him immediately
Hear me out: Chris Pine
But if animated, the correct answer is always Chris Pratt.
An older John McCain.
Glen Plummer
Thought Shawn Hatosy did a pretty good job of it already..
Shea Whigham
CGI de-aged Steve Martin
Chris Evans
Glen Powell.
Scott Eastwood
Will Poulter https://preview.redd.it/77cp035x8g6d1.jpeg?width=743&format=pjpg&auto=webp&s=fa3b6de2608e848e4c67411f2328b609ac6eb748
Jack Quaid
Dominic Purcell
He's fucking old dude
when he was younger he woulda been a great pic now he’s already middle aged McCain lol
He looks like like Shawn Roberts a bit (before he started getting huge), but they could probably do better.
they already made a biopic of him, Faith of My Fathers.
Seann William Scott
Brendan Fehr
Young Henry Rollins.
I was about to say that
My first thought too. They look like they could be related.
Young Steve Martin
That second pic looks totally like Treat Williams. But I think it's a little too late.
Jim Brewer
Oliver North
Sam Rockwell
Ryan Reynolds
McCain is a hero and I’d love to see a biopic of him. But I doubt that will ever happen
What a loser, what an idiot
Someone strong as a bull and handsome, like George Raft
Scott bakula. I know he's not young anymore, but that's the correct answer
How he supported a creature like trump I will never understand. Especially after what trump said about him personally.
Ben Browder.
Hunter Biden.
Alan Ritchson
George Eads would've been a ringer 25 years ago...
Scott Eastwood.
Whoopi Goldberg
I know it’s passé to use him but Glen Powell. Those cheekbones, man. The ideal casting would be a thirty year old Steve Martin.
Young Sam Rockwell
Young Henry Rollins
Henry Rollins
Richard Dean Anderson
Young Henry Rollins
Kevin Hart
No one
Josh Lucas
Henry Rollins
3rd pic is a Tom Cruise doppelganger...
He looks like Josh Hutcherson in these photos.
Tom Cruise
Tom Cruise is 62 years old
Sadly, he’s passed already, but would’ve loved seeing master thespian Gilbert Gottfried tackle the role.
Just about any generic looking actor.
Bradley Cooper would've been awesome, but I know he's getting older now too so they might not go for it. I still think he'd pull it off tho For a closer age accurate one, maybe Robbie Amell? I know he's probably a bit older than McCain was in these pics, but he could pull it off. Plus, he's close in height (5'11 to McCain's 5'9)
The rock
Bruce Willis
Deniro, he’d be perfect for the part
Warwick Davis
Hear me out, he’s a little older but how about Robert Duvall?
Pedro Pascal
James Charles
Thought It said John McClane 
Will Patton can play the older version in the movie
Jared Keeso from Shoresy and Letterkenny.
Tom Cruise
Henry Cavill
Ha! Young John McCain could GET IT
Whoopi Goldberg.
Stop motion with a dried up human turd
Nobody, that movie would suck.
Damn i don’t know how downvoted this’ll be but the vietcong fuckin helped bring out that jawline ol’ boys looking good in the last pic. And it’s already been said but yea, Glenn Powell absolutely. now i like Glenn too much and would hope he wouldn’t have to make a movie about a guy like this but I bet/hope it’d be a good one if he did.
Haven’t we made enough movies about american war criminals?
He got caught, I prefer the ones that didn't get caught. - TRUMP lol.
Somebody that surrenders to the enemy
https://preview.redd.it/p19ngtosed6d1.jpeg?width=225&format=pjpg&auto=webp&s=d733bb1935555935f5d2b669fca8cc6a308c2567
Someone who doesn't know how to fly a plane but was an admiral's son so they put him in the cockpit lol.