ignites fierce debate over Philly's best cheesesteak as he posts beaming ...

Donald capped off a town hall broadcast in Philadelphia last night by uploading a celebratory snap to Instagram of him enjoying one of the city's world-famous cheesesteak aboard Air Force One.

'Great to be back in Philadelphia,' wrote accompanying the image of him beaming next a sandwiches after the ABC event Tuesday. 'Thank you Pennsylvania, see you again soon! #MAGA'

The image, which has since gone on to garner more than 1.5 million likes, was quickly inundated with comments from supporters in the state who were delighted to see enjoying one of Pennsylvania's most beloved delicacies.

'Aw I am glad you have a Philly cheesesteak! We love you in Pa! You are the best,' one user wrote.

But a fierce debate also broke out among Philadelphia natives who demanded to know where the president bought the sandwich from, whether it be from Pat's, or its rival Geno's – two legendary haunts located across the street from one another on Passyunk Avenue.  

Donald Trump capped off a town hall broadcast in Philadelphia last night by uploading a celebratory snap to Instagram of him enjoying one of the city’s world-famous cheesesteaks aboard Air Force One

Donald capped off a town hall broadcast in Philadelphia last night by uploading a celebratory snap to Instagram of him enjoying one of the city's world-famous cheesesteaks aboard Air Force One

'Pat's or Geno's?' dozens of responses read on both Instagram and Twitter.

Even the president's eldest son, Donald Jr., demanded an answer, tweeting his father: '2 cheesesteaks. Is that one Pat's one Gino's???'

Atl-right political activist Jack Pesobiec responded: 'Bun is way too dry to be Pat's. Looks more like Geno's.'

Others voiced hope the president had ventured out to lesser known, yet apparently superior spots.

'That better be from Jay's on South Street or it ain't no good to us!' one user wrote.

'Not wading into the politics, but apparently and co. have sparked a cheesesteak debate claiming Pat's and Geno's are the best,' another added. 'They are not, they are tourist garbage. D'Alessandro's or [get out]'.

DailyMail.com has since learned the president actually ordered the cheesesteak from D'Allesandro's.

previously paid a visit to Geno's a stop-over in the city in September, 2017, but appears to have changed his go-to preference.    

While the source of the sandwich – or sandwiches - remains unclear, Trump did previously pay a visit to Geno’s in person during a previous visit to the city in September, 2017

While the source of the sandwich – or sandwiches - remains unclear, did previously pay a visit to Geno's in person during a previous visit to the city in September, 2017

The Pat's and Geno's cheesesteak debate is one of Philly's greatest food rivalry's, according to Phillybite.com.

Pat's founder, Pat Olivieri, claimed to be the original inventor of the cheesesteak and opened up shop on 9th Street and Passyunk Avenue, in South Philadelphia. 

Geno's launched their cheesesteak shop directly across the street 36 years later and claimed to have mastered the sandwich.

Both of the eateries allegedly use the same bread and the same cheese, though consumers find themselves divided over the taste of the steak itself: Pat's chops it's steak while Geno's serves its meat sliced.

D'Allesandro's, meanwhile, claims to serve a cheesesteak 'like no other' on its website.

The eatery, opened in the 1960s, has won various awards, year-on-year, crowning it as the best place to go for one of Philly's finest.

The president’s daughter Ivanka Trump started a debate of her own on Twitter, uploading the picture of her father with his cheesesteak next to one of him posing with a taco bowl in 2016

The president's daughter Ivanka started a debate of her own on Twitter, uploading the picture of her father with his cheesesteak next to one of him posing with a taco bowl in 2016

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