President Donald Trump’s campaign on Thursday, Oct. 29, called on Democratic presidential nominee Joe Biden to respond to a report that alleged his son Hunter Biden has been under an active criminal investigation by the FBI since 2019.

A Justice Department official on Thursday confirmed to Sinclair Broadcast Group that the FBI had opened a criminal investigation into Hunter Biden and his associates in 2019, focusing on allegations of money laundering and that the investigation remains active today.

Sinclair investigative reporter James Rosen has also spoken with Hunter Biden’s former business partner, Tony Bobulinski, who said he was questioned by six FBI agents with counsel present for five hours on Oct. 23. Bobulinski said the FBI was listing him as a “material witness” in an ongoing investigation focused on Hunter Biden and his associates.

The FBI subpoenaed a laptop allegedly belonging to Hunter Biden back in 2019 as part of a money laundering investigation as Fox News reported last week.

The Trump campaign expressed doubts that Joe Biden was unaware of the FBI investigation of his son.

“It is not believable that Joe Biden was unaware that his son was under FBI investigation since last year,” Trump campaign Communications Director Tim Murtaugh told The Washington Times. “Joe Biden must answer these questions.”

Bobulinski, a veteran of the United States Navy, decided to speak out publicly last week after Democrats suggested that the disclosure of purported Hunter Biden emails is part of a Russian disinformation campaign.

Bobulinski accused Joe Biden of lying about his involvement with his son’s overseas business dealings, claiming that he met face-to-face with Joe Biden after the former vice president left office to discuss business deals involving the Chinese and Hunter Biden. He said he believed that Joe Biden would be compromised by the Chinese Communist Party (CCP) should he is elected.

“The compromise they have is that in documents that have been well provided to the Senate, to Congress, to the Department of Justice via the FBI that CEFC was effectively loaning money directly to the Biden family,” Bobulinski said, reported Fox Illinois.

Bobulinski added that the CCP might be in possession of the information on the Bidens’ business dealings throughout the world.

“I can only imagine to the extent that the Chinese Communist Party has information on the Biden family and their business dealings. Other business dealings that occurred in Romania, Khazakstan, Georgia, Monaco, and the Middle East, and then obviously topping off in Russia,” he said.