Ever since the Jan. 6 Capitol riot of 2021, former President Donald Trump and former Vice President Mike Pence have not been on particularly good terms, and their once-friendly relationship now appears to have completely soured as both are running against each other for the 2024 Republican nomination.

Those hard feelings, which extend to each candidate's supporters, were on full display Friday when a group of Trump supporters heckled Pence at a campaign stop in New Hampshire and the former VP snapped back at them in response, Politico reported.

The very next day, the former president lashed out against his former running mate by accusing him of going over to the "Dark Side" in reaction to Pence's critical commentary about the latest federal indictment against Trump.

Pence snaps back at Trump supporters

According to Politico, former VP Pence had just arrived at a town hall event in Londonderry, New Hampshire, Friday evening when he was confronted by a group of Trump supporters who harangued him after he exited his vehicle and attempted to greet some of his own supporters.

"Why’d you sell out the people?" one man yelled as another person called Pence a "traitor." The first man yelled again, "Why didn’t you uphold the Constitution?"

"I upheld the Constitution," Pence shouted back at the group and then, in response to continued heckling about the nation's founding document, snapped, "Read it."

A dozen Trump supporters approached Mike Pence’s vehicle as he entered his Friday event yelling, “that’s a traitor,” “you’re a sellout,” and “why didn’t you uphold the constitution?”

“I upheld the constitution,” Pence shouted back.

As they badgered him he yelled, “Read it!” pic.twitter.com/gKpeB2mntO

— Kelsey Walsh (@Kjwalsh_news) August 5, 2023

Pence critical of Trump following latest indictment

Following that incident, according to Politico, former VP Pence referenced the heckling from the Trump supporters still angry over his decision to certify President Joe Biden's victory on Jan. 6, 2021, and said, "There is a lot of passion out there. I reject your suggestion that that passion is translated into the violence and the vandalism of that day."

"I know the people of this movement -- whether they support me or not -- are the best people in this country," he added.

Just a few days earlier, in reaction to Special Counsel Jack Smith's indictment of former President Trump in relation to his efforts to challenge the 2020 election results and delay the Jan. 6 congressional certification, Pence posted a thread of tweets that said, "Today's indictment serves as an important reminder: anyone who puts himself over the Constitution should never be President of the United States."

"Our country is more important than one man. Our constitution is more important than any one man’s career," he added later in the thread. "On January 6th, Former President Trump demanded that I choose between him and the Constitution. I chose the Constitution and I always will."

Trump accused Pence of going over to the "Dark Side"

On Saturday, in apparent response to that thread and other prior comments from Pence, Trump struck back on Truth Social and said, "WOW, it’s finally happened! Liddle’ Mike Pence, a man who was about to be ousted as Governor Indiana until I came along and made him V.P., has gone to the Dark Side."

"I never told a newly emboldened (not based on his 2 [percent] poll numbers!) Pence to put me above the Constitution, or that Mike was 'too honest.' He’s delusional, and now he wants to show he’s a tough guy," the former president added.

Politico noted that Pence has struggled greatly throughout the campaign season thus far, and has faced boos and heckling on multiple occasions. He is also in danger of not qualifying for the GOP primary debates, as he reportedly has only raised around $3.8 million for his campaign in the second quarter and remains mired in the low single digits in all of the polls.