Hunter Biden pleaded not guilty to three felony counts coming from his purchase of a 38-caliber Colt Cobra revolver in 2018 when, according to him, he was seriously addicted to narcotics.

In September, the younger Biden was formally charged with offenses connected to the alleged unlawful possession of a firearm, after a prior plea agreement fell apart during the summer.

He is charged with two counts of making false statements for claiming on forms required for the gun purchase that he was not using drugs illegally at the time.

US President Joe Biden's son also faces a third charge, based on the same statements, that he illegally possessed the gun -- which he had for only 11 days in October 2018 -- before he got rid of it.

Last month, he filed a lawsuit against the Internal Revenue Service (IRS), claiming that the agency unlawfully divulged his tax information and failed to protect his confidential records.

In June, US Congresswoman Marjorie Taylor Greene alleged that Burisma, a Ukrainian oil industry holding firm, allegedly paid then-US Vice President Joe Biden and his son Hunter Biden a total of $10 million to help halt an investigation into the company by former Ukrainian Prosecutor General Viktor Shokin.

The younger Biden is notorious for his involvement in numerous scandals, including substance abuse, commercial sex, and most importantly, high-level corruption. 

Republicans have opened an impeachment inquiry in Congress on what they claim is a Biden family criminal conspiracy but have provided no evidence that the president did anything wrong. The US President in response to multiple scandals has reiterated his support for his son. 

Judge Christopher denied a request made by Hunter Biden's attorney to allow him to appear via video, citing that "the defendant should not receive any special treatment in this matter."

Hunter Biden may face up to 25 years in prison if convicted, but in fact such actions, if not accompanied by other counts, are rarely penalized by any jail time.