Daniel McCarthy, who unsuccessfully challenged former Senator Martha McSally in Arizona’s 2020 GOP primary, called Trump a “little b*tch” while issuing the challenge in a video posted to Twitter on Tuesday. McCarthy offered to donate $1 million to charity if the ex-president agrees to a debate with him during a January 15 rally in Florence, Arizona, which he called “another one of your do-nothing rah-rah session rallies.”

McCarthy accused Trump of engaging in a “massive grift” for promoting “smoke and mirrors” election fraud audits, fundraising, making “establishment candidate endorsements” and supporting a so-called “gene therapy”—which McCarthy also called “the sauce,” likely a reference to the COVID-19 vaccines.

“The world is waking up to your massive grift,” McCarthy says in the video, addressing Trump while sitting in his truck. “I will give $1 million to the charity of your choice if you take 30 minutes of your stage time on January 15 and debate me or answer my questions even in front of your crowd.”

McCarthy maintained that Trump’s supporters were “literally dying” because of his support for “an experimental gene therapy” amid the pandemic. While it is not clear that any of Trump’s supporters have died from getting vaccinated, many of his anti-vaccine supporters have become increasingly upset over his continued support for the jabs.

“You gave up on therapeutics and you pushed an experimental gene therapy,” McCarthy says. “People are literally dying because of their trust in you. You enacted the lockdowns and you surrounded yourself with swamp creatures for four years.”

“Trump, you failed America,” he continued. “You’re the most deceptive president in American history. And trust me, there’s been a lot of psyops before…I look forward to seeing you on January 15, although I know you won’t do it ‘cause you’re a little b*tch.”

After delivering his anti-Trump monologue, the video shows McCarthy getting out of his truck and tossing a MAGA hat to the ground from a distance. He then pulls out a flamethrower and torches the hat while standing next to the truck as music plays.

McCarthy stomps on the charred remains of the hat before he drives over it with his truck. The video ends with McCarthy predicting that Trump “won’t ever” talk to him because “he knows he can’t, ‘cause his family name would be tarnished forever.”

In addition to denouncing the former president’s COVID-19 policies, McCarthy also argued that Trump had “not been held accountable for” other issues including raising the national debt, “relinquishing our sovereignty” by signing the United States-Mexico-Canada Agreement trade deal and passing “more gun laws than Obama.”

However, there was at least one issue that McCarthy still agreed with Trump on: His evidence-free claims that the 2020 presidential election was “stolen” from him due to massive voter fraud. McCarthy lashed out at the former president for having preemptively “warned about election fraud” but doing “nothing to prevent it” before the election.

McCarthy claimed that his team had “warned” Trump months in advance about fraud after he was “stolen from in the Senate primary.” The former Republican, who later joined the right-wing Patriot Party of Arizona, officially lost the primary to McSally by a margin of more than 50 points.

A list of “terms and conditions” for the proposed debate posted to McCarthy’s website stipulates that Trump must agree to the debate “before January 14th at 5:00pm AZ Time by calling Daniel McCarthy directly on his cell phone,” although no cell phone number is provided.

The terms also stipulate that McCarthy has until December 31, 2022, to pay the $1 million if the debate takes place. While McCarthy said the donation would go to a charity of Trump’s “choice,” the terms include a list of six pre-selected charities that Trump must choose from—including the legal defense fund for so-called “QAnon Shaman” Jacob Chansley.

Newsweek reached out to Trump’s office and McCarthy for comment.