WASHINGTON — Something funny, Joe?

President Biden laughed Friday when asked for his reaction to the elevation of David Weiss to serve as a special counsel in the investigation of first son Hunter Biden following the collapse of a probation-only plea deal for tax fraud and illegal gun possession last month.

“What is your reaction to the special counsel appointment last week into your son?” asked Associated Press reporter Aamer Madhani during a press conference at Camp David, Md.

Biden, flanked by his counterparts from Japan and South Korea, laughed upon hearing the question, before giving his first verbal reaction to Weiss’ appointment by Attorney General Merrick Garland last week.

“I have no comment on any investigation that’s going on,” the 80-year-old president said.

“That’s up to the Justice Department. And that’s all I have to say.”

Congressional Republicans are investigating whether Joe Biden misused his office while vice president to enrich himself or his family and are looking into Weiss’ role in what whistleblowers say was a Justice Department coverup in the Hunter Biden case.

House Speaker Kevin McCarthy (R-Calif.) said this month that Republicans are getting closer to launching an impeachment inquiry, which could happen as early as September.

Garland’s elevation of Weiss to be a special counsel was greeted with a mix of vindication and alarm by Republicans, who slammed the Delaware US attorney’s slow investigation of the Biden family’s dealings and his decision to sign off on what they called a “sweetheart deal” that included a broad immunity clause for past conduct that was concealed within an associated diversion agreement.

Republicans noted that Weiss had not charged the first son with violating the Foreign Agents Registration Act and questioned whether he did anything to investigate a paid FBI informant’s report that Mykola Zlochevsky, owner of Ukrainian natural gas company Burisma Holdings, said in 2016 he was “coerced” into paying $10 million in bribes to Joe and Hunter Biden — on top of the $1 million annual salary paid the then-second son beginning in 2014, as his father assumed control of US policy toward Ukraine.

A federal judge dismissed federal tax charges against Hunter Biden in Delaware to allow Weiss to refile them in Los Angeles and Washington, DC.

Two IRS whistleblowers who investigated the first son said earlier this year that they were barred by Weiss’ office from investigating Joe Biden’s role in foreign dealings, despite communications that directly implicated him, and accused Garland of misleading Congress by saying that Weiss had the power to bring charges outside his district.

Gary Shapley and Joseph Ziegler also said that Weiss previously sought to charge Hunter Biden with federal crimes in Los Angeles and DC, but that Biden-appointed US attorneys refused to allow it, causing the statute of limitations to expire for some charges.

Biden has taken few questions from the press in recent weeks, limiting his exposure to queries about developments in the criminal and congressional investigations into his family’s foreign business dealings — including testimony and evidence from former Hunter Biden partner Devon Archer that more closely tied the president to his son’s interests in China and Ukraine.

Biden has denied knowing about or ever discussing business dealings with members of his family — despite mounting evidence that he conversed and dined with his son Hunter and brother James Biden’s associates from countries where he held sway as vice president.

Archer told the House Oversight Committee on July 31 that Hunter, now 53, put his father on speaker phone during roughly 20 business meetings with foreign associates and that Joe Biden as vice president had two dinners at DC’s Cafe Milano — in 2014 and 2015 — with his son’s Kazakhstani, Russian and Ukrainian patrons.

Archer also said that Joe Biden had coffee — rather than a mere handshake — in December 2013 with Jonathan Li, the incoming CEO of Chinese state-backed investment fund BHR Partners, which Hunter cofounded within weeks of joining his father aboard Air Force Two for a trip to Beijing.

Archer said that Hunter, who held a 10% stake in BHR through at least late 2021, put Joe Biden on speaker phone with Li during a subsequent business trip by the then-second son to China.

The then-vice president also wrote college recommendation letters for Li’s children.

As part of a later Chinese venture with state-linked company CEFC China Energy, Joe Biden allegedly met twice with his son and brother’s partners and was even penciled in as the “big guy” due a 10% cut, as documented in a May 2017 email months after he left office as vice president.

Hunter Biden, James Biden and the president’s daughter-in-law Hallie Biden received more than $1 million in early 2017 from CEFC-associated firm State Energy HK, according to bank records released by the House Oversight Committee.

Hunter then sent a threatening July 30, 2017, WhatsApp to a Chinese associate warning that he was “sitting here with my father” and threatening retribution if the deal was aborted, immediately preceding the transfer of $5.1 million from CEFC to Biden-linked accounts.

Shapley and Ziegler said they were not allowed to acquire cellphone location data to determine if Joe Biden actually was sitting next to Hunter, though photos from his abandoned laptop indicate the first son was at his dad’s Wilmington home that day.

Archer also testified that Hunter Biden and two Burisma executives — Zlochevsky and board adviser Vadym Pozharskyi, with whom Joe Biden dined in April 2015 — stepped away from a meeting in Dubai in December 2015 to call the vice president as the elder Biden campaigned for Ukraine’s government to fire the country’s prosecutor-general Viktor Shokin.

Shokin was investigating Burisma and seized Zlochevsky’s assets in February 2016, weeks before his ouster — which Joe Biden has publicly claimed credit for effecting.

Democrats argue that Shokin was fired for his own corruption at the urging of many Western governments.

Archer said in an interview this month with former Fox News host Tucker Carlson that it’s “categorically false” to say Joe Biden was uninvolved in foreign business relationships.

“He was aware of Hunter’s business, he met with Hunter’s business partners, I mean you found a letter that illustrates that he knew me,” Archer said, referring to a Jan. 20, 2011, note from then-Vice President Biden expressing his pleasure that Archer was working with Hunter and thanking him for joining a lunch with visiting Chinese President Hu Jintao.