Memo to Iowa Rep. Steve King: Col. Nathan Jessup is a character from the movie “A Few Good Men,” not a real Marine.

King was apparently unaware of that when Ken Klippenstein, of the progressive YouTube program The Young Turks, spoofed the Republican firebrand into sharing a message of support for his supposed uncle, Col. Nathan Jessup, who was played in the movie by Jack Nicholson.

“Sir, can I get a retweet for my uncle Col. Nathan Jessup, he’s the Marines and spending the 4th overseas keeping our nation safe,” Klippenstein wrote in the Fourth of July tweet, sharing a still of the three-time Oscar winner in uniform from the movie.

King bit, adding in his retweet: “Colonel Jessup and all your Marines: God Bless you all. You have our back and millions of us have yours! God Bless America and all her warrior defending our Liberty! SK.”

But after King shared the tweet, Klippenstein changed his Twitter username to “Steve King is a white supremacist,” which then appeared on King’s timeline.

A short time later, King apparently couldn’t handle the truth that he’d been fooled not once but twice and deleted the tweet. But he wasn't fast enough.

Soon, other Twitter users began asking the controversial congressman to share supportive tweets to other fictional military characters.

Steve King @SteveKingIA We honor the courage and bravery of Private Benjamin Steve psst just so you know it's really a movie about a fictional character @goldiehawn portrayed. 🤣😂👇 pic.twitter.com/hyeFyBsz9g — JoeyG.New York🇺🇸 (@GomezSantos22) July 5, 2019

Wonder if I can get Steve King to give a shout out to my uncle Private Winger and his platoon? In a daring mission to rescue sensitive military hardware, they took out several commies. All after training themselves. pic.twitter.com/TFodQczwXt — Andrew Sowards (@AndrewHSowards) July 5, 2019

@SteveKingIA @kenklippenstein can I get a retweet for my grandpa he is a retired general and he loves America his passion in life is saving people money on car insurance and standing up with his had on his heart for the pledge of allegiance. #GodBlessOurTroops pic.twitter.com/trpXL4AwHT — Jake Fulop (@fulop_jake) July 5, 2019

Dear Steve King, can you give a shout out to Michael and Nick? They were forced to play Russian Roulette for entertainment as POW’s in Vietnam. Here is a photo of them.



Thanks! pic.twitter.com/xUsVvBd9kW — Noah (@DefToolNIN) July 5, 2019

Steve King, could we take the time to honor CPL. Dwayne Hicks? pic.twitter.com/mOAzCMf8Ob — Knight of Cerebus (@SciOperative) July 5, 2019

King also made the mistake of replying to another Twitter user who had a question about the Betsy Ross flag, which has been the subject of controversy after Nike pulled the plug on a new Fourth of July shoe which featured her design after Colin Kaepernick reportedly expressed concerns.

But that second user changed his handle to "Steve King drinks pee pee."

Can I get a retweet for my friend Major Tom? His circuit's dead and he's floating above the earth. He wants his wife to know he loves her very much. It would mean a lot. pic.twitter.com/5QDpUaVqqx — Sognando di Sicilia (@lastrega) July 5, 2019

King apparently didn't realize he was duped yet again because it was still on his Twitter feed Friday. His spokesman, John Kennedy, did not return an email or phone call for an explanation.

An ardent supporter of President Donald Trump, King represents the mostly rural and rock-solid Republican Fourth District in northwestern Iowa and has a history of making racially insensitive statements, especially about Hispanic immigrants.

Earlier this year, King was rebuked by his own party and stripped of his committee assignments after he made inflammatory remarks about white nationalism. He later compared his rebuke to Jesus' suffering.

Co-starring Tom Cruise and released in 1992, "A Few Good Men" is a critically-acclaimed military courtroom drama that received four Academy Award nominations, including a best supporting actor nomination for Nicholson.