Congressional investigators will have “key figures” appear for depositions in an investigation into allegations of influence peddling levied against President Joe Biden and his family, according to a top Republican lawmaker.

During an interview with Fox News, House Oversight Chairman James Comer (R-KY) shared insight into what steps his panel will take as it ramps up its inquiry into what he has described as a pattern of millions of dollars flowing to Biden and his relatives from foreign nationals under suspicious circumstances.

“We’re going to start bringing in key figures in the Biden family influence-peddling schemes for depositions,” Comer said, “and I think we’re on the right track, even though we’re having to fight the FBI, fight the DOJ [Department of Justice], fight the Democrats in Congress and fight the mainstream media.”

The GOP-led House Oversight Committee has been ramping up their inquiry into the Biden family in recent months, saying the investigation may inform legislative reforms to strengthen disclosure requirements. Democrats in Congress dismiss the probe as a politically motivated endeavor to tar Biden ahead of the 2024 election, and Biden himself has called the corruption allegations “a bunch of malarkey.”

All the while, Biden’s son, Hunter, is facing an investigation by a U.S. attorney in Delaware looking into his financial affairs. The younger Biden has said he expects to be cleared of wrongdoing.

House Oversight Republicans paid a visit to the Treasury Department in April for an examination of Biden-related suspicious activity reports (SARs), used by financial institutions to flag possible criminal behavior, and Comer has issued subpoenas for bank records.

“I think we’ve done as much as we could do with the obstacles we’ve had to overcome. No one thought I would get bank records,” Comer said. “No one thought we would get access to the Treasury, Cabinet’s suspicious activity reports, but we would not take ‘no’ for an answer,” Comer said about his committee’s efforts.”

He added: “We kept fighting and we prevailed. When we got access to the suspicious activity reports, the mainstream media said there was nothing there.”

At least 20 “sham” companies and complicated financial transactions have been used to hide money funneled to members of the Biden family, Comer said in a recent tweet. The chairman predicted in an interview last week with Fox Business anchor Maria Bartiromo that he expects bank records to show Biden family members accepting anywhere from $10 million up to $30 million from foreign nationals. Countries such as Ukraine, China, and Romania have become a focus of the inquiry.

On Monday, Comer subpoenaed Devon Archer, who is believed to have played a role in Biden family deals abroad, demanding a deposition. And Comer has been pressing the FBI for documents related to a confidential human source who claimed there was a Ukraine-centered $5 million scheme involving a foreign national paying six figures to secure favorable actions from Joe Biden at a time when he was vice president.

Questioning what federal investigators have done to look into possible money laundering, Comer told Fox News “there’s a pattern here where the federal government, the deep state bureaucracies, have turned a blind eye to Joe Biden.”

He added: “Our job in the House Oversight Committee is to follow the money, and we have more bank records coming in.”

UFC commentator and comedian Joe Rogan invited a health expert to debate Robert Kennedy Jr., a Democratic Party candidate for president, about vaccines on his popular podcast in exchange for a $100,000 donation to charity.

Dr. Peter Hotez, dean at the National School of Tropical Medicine at Baylor College of Medicine in Houston, Texas, lashed out in response to Rogan speaking to Kennedy about vaccine efficacy and safety during a recent interview on “The Joe Rogan Experience” on Spotify.

Hotez, who is also a director of the Texas Children’s Hospital Center for Vaccine Development, was recognized as a “vaccine champion” by the American Medical Association last year for his work advocating for vaccines, particularly during the COVID pandemic.

On Saturday, Hotez tweeted a link to a Vice article, “Spotify Has Stopped Even Sort of Trying to Stem Joe Rogan’s Vaccine Misinformation,” tagging the author and saying the report was “really true” and “just awful.”

He added: “And from all the online attacks I’m receiving after this absurd podcast, it’s clear many actually believe this nonsense.”

Rogan replied from his verified Twitter account. “Peter, if you claim what RFKjr is saying is ‘misinformation’ I am offering you $100,000.00 to the charity of your choice if you’re willing to debate him on my show with no time limit,” Rogan said.

“Peter. Let’s finally have the respectful, congenial, informative debate that the American people deserve,” Kennedy said in a reply.

In a quote tweet response to Rogan, Hotez said, “Joe, you have my cell, my email, I’m always willing to speak with you.”

Rogan shot back, saying Hotez’s tweet was a “non-answer” to his challenge.

“I challenged you publicly because you publicly quote tweeted and agreed with that dogs*** vice article,” Rogan added. “If you’re really serious about what you stand for, you now have a massive opportunity for a debate that will reach the largest audience a discussion like this has ever had. If you think someone else is better qualified, suggest that person.”

The back-and-forth continued with Hotez quote-tweeting a longer response to Rogan.

“Joe if you are serious about addressing vaccines + the fact that 200,000 unvaccinated Americans needlessly perished during our awful delta/BA.1 Covid waves (including 40,000 in our state of Texas) because they fell victims to vaccine disinformation: I want to have that discussion,” Hotez said.

“And I’m open to a number of different options, but to be pressured to give you an answer on Twitter, now, with a ‘take it or leave it’ demand that’s not how I work. Honestly, I don’t even think that would be in your best interests,” Hotez continued. “I’m happy to come on and have a meaningful discussion. I respect you and your show and I don’t want an adversarial relationship. I think we can make some progress.”

Rogan kept up the pressure. “Again, I’m going to ask you very clearly, are you willing to debate [Kennedy] on my podcast?” he asked.

“To those misunderstanding what he’s saying, he’s NOT agreeing to debate [Kennedy],” Rogan said in another tweet. “He’s just offering to come on my show by himself.”

Hotez started engaging with Twitter CEO Elon Musk, who jumped into the fray by claiming that the doctor is “afraid of a public debate, because he knows he’s wrong.”

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“Seriously Elon? This is monstrous. 200,000 Americans needlessly perished (including 40,000 Texans, our neighbors) because they were victims of antivaccine disinformation during our awful Covid delta/BA.1 waves in 2021-22. Please don’t do this…” he said in response to Musk.

As the conversation continued, Hotez summarized his position in a separate pair of tweets.

“Let’s remember what this is about, not a small number of Americans lost their lives from antivaccine disinformation during the pandemic. 200,000 Americans perished, 40,000 from my State of Texas I have nothing personal vs Joe, Elon, RFK Jr. Just hoping to halt more destruction,” he said. “Not easy to respond when those 3 gang up and tag team. Wish I could be more eloquent and clever when the moment demands, but there you are..”

In an effort to convince Hotez to agree to a debate, others began to pledge additional donations to the charity, including hedge fund manager Bill Ackman and tech entrepreneur Steve Kirsch, bringing the total possible amount to at least $600,000.

It remains to be seen whether Hotez will appear on Rogan’s show and debate Kennedy.