Rudy Giuliani declared on Saturday night that he has three witnesses who are ready to "name names" in an investigation into Hunter Biden and his dealings with Ukraine.

Giuliani told Fox News host Jesse Watters that the revelations will result in President Donald Trump being "totally vindicated" following the partisan-led impeachment proceedings in Congress which resulted in the president being acquitted by the Senate.

"I want to prove what happened," the former New York City mayor and federal prosecutor said, "because I believe if we prove what happened, he will be totally vindicated."

According to Fox, Watters pressed Giuliani on whether he had documentation of the younger Biden's business relationships in Ukraine while noting that Senate Judiciary Committee Chairman Lindsey Graham (R-S.C.) will be probing the matter.

"Lindsey, get started," Giuliani said, while adding he possessed "what I used to call when I was U.S. attorney, the smoking gun."

Watters described Giuliani's "smoking gun" as "an international wire to avoid detection disguised as a loan."

Giuliani said his revelations will also show that former Vice President Joe Biden should have been investigated after bragging back in 2016 that he got Ukrainian prosecutor Viktor Shokin fired as he was looking into the business practices of Burisma, the energy company where Hunter Biden sat on the board.

"Look, the government has been so lax in investigating, it's pathetic," Giuliani said. "I mean, when I was a U.S. attorney, the day Joe Biden made that boastful announcement, the investigation would have begun the next day for bribery."