A House Republican investigation led by Oversight Chair James Comer (R-KY) has been trying to link President Joe Biden and his family to accusations of essentially accepting bribes from foreign countries.

But Politico reports they have yet to deliver the goods — and are under pressure to do so, at the risk of their probe losing steam and legitimacy.

"The Oversight Committee chair’s pivotal moment comes in the form of a long-planned press conference on his panel’s investigation into President Joe Biden, his son Hunter who’s already facing a federal investigation, and other family members. Comer’s move follows weeks of doubt, including from some within his own party, that the Kentucky Republican can back up his promises to find a smoking gun that would tie the president to the private affairs of his relatives," Politico reported.

"No such link has publicly emerged. And unless Comer’s yet-to-be-released findings ... contain that hard proof, his maneuver is at serious risk of backfiring just as he’s ramping up efforts to get more buy-in for his probe."

This comes as CNN reports that Comer has released a memo alleging members of Biden's family, including his son Hunter, received payments from foreign entities in Romania and China — but stops considerably short of finding any proof of criminal wrongdoing.

"The foreign payments raise questions about Hunter Biden’s business activities while his father was vice president, but the committee does not suggest any illegality about the payments from foreign sources. The bank records by themselves also do not indicate the purpose of the payments that were made," reported Annie Grayer, Alayna Treene, Jeremy Herb, and Sara Murray. "Comer has suggested that Biden may have been improperly influenced by the financial dealings, particularly by his family’s foreign business partners, but the latest report does not show any payments made directly to Joe Biden, either as vice president or after leaving office."

In response to the new findings put forward by GOP Oversight, White House assistant Ian Sams tweeted, "Seriously?This was debunked literally 4 years ago."