This page contains trivia for "Doubling Down". Remember, trivia must be factual, provable, and it is always best to cite your source for not-so-obvious trivia. If you would like to dispute a trivia point, please discuss it in the article comments.
In this episode, it is revealed that Heidi Turner is of Irish descent.
When President Garrison and Vice President Pence mention Niger, it is a reference to the Tongo Tongo ambush in October 2017 where 4 U.S. Army Special Forces soldiers were ambushed and killed during a search for Islamic militants in the African country of Niger. It was later followed by criticism regarding a conversation between President Trump and a widow of one of the soldiers.
In the episode Marjorine, Heidi lived in a completely different house.
The vegan item Heidi mentions, Beyond Meat, is an actual plant-based meat product that is sold at Whole Foods Market nationwide.
However there is no "Beyond KFC", Cartman makes it up and causes Heidi to gain weight quickly.
During the montage scene, President Garrison is shown talking to China's president, Xi Jinping. During the original airing of the episode, President Trump was actually in China meeting with Xi Jinping.
The scene with Paul Ryan and the others bringing President Garrison a cake and singing "Happy Anniversary" is a reference to the one year anniversary of Donald Trump winning the 2016 Presidential Election. The original air date of this episode coincided with the one year anniversary.
Cartman asking Token about disrespecting the flag and flipping over cars is a reference to NFL players kneeling during the national anthem and activist group Black Lives Matter rioting during protests of social injustice. This would later be mocked in the next episode " Moss Piglets".
The first part of the scene where Kyle talks to the girls is derived from a deleted scene from the Season Twenty episode, "Wieners Out".
Despite Caitlyn Jenner being elected Vice President during season 20, current U.S. Vice President Mike Pence is shown having the position.
The Little Mermaid: A giant Kyle emerging from the ocean with a glowing menorah while Cartman holds Heidi is a reference to Ursula becoming stronger after taking King Triton's crown and trident while Eric tries to protect Ariel.
Cats Don’t Dance: As Cartman and Heidi run towards a blue horizon, a giant Kyle emerges from the ground, causing them to run back. This refers to a scene in Darla Dimple's musical number "Big and Loud".
When Mike Pence, Paul Ryan, and Mitch McConnell were having a quiet conversation on the approval ratings, McConnell replies that he is "just a turtle". This refers to when the former Daily Show host Jon Stewart repeatedly mocked McConnell for his resemblance.