Trump lawyer and former New York City Mayor Rudy Giuliani suggested on Monday night that there was serious evidence that the Obama White House directed Democrats to work with Ukraine to dig up dirt on then-candidate Donald Trump.

Giuliani joined Fox News’ Sean Hannity on Monday night where he detailed the latest developments into the situation regarding Ukraine, which stems from a 2017 Politico investigation that found that Ukraine was working with operatives for the Democratic National Committee to sabotage Trump.

“The reason why the president of the United States had an obligation to ask the president of Ukraine to follow up on these allegations because there is substantial — I don’t want to exaggerate it but pretty close to overwhelming evidence, including a finding by a Ukrainian court that Hillary Clinton and the Democrats cooperated with Ukrainians with the order coming directly from the White House … to dig up dirt on her political opponent, and they did,” Giuliani said.

Giuliani then shifted his comments to focus on then-Vice President and now current Democrat presidential candidate Joe Biden and the allegations surrounding his Ukraine corruption scandal.

“In this case, Biden sold his office for millions,” Giuliani said. “Is there anybody that believes that Ukraine or China were paying for Hunter Biden’s expertise? Or do you have the common sense to realize they were buying Joe Biden’s office? And that is very damaging to the United States. Joe Biden was sent to Ukraine to, in part, deal with corruption, and he helped to corrupt the Ukraine. He is a laughingstock.”

“We are [a laughingstock] because we talk about corruption and this guy puts his incompetent son to work for the most crooked oligarch in Russia? I mean, it is outrageous,” Giuliani continued. “The only really sad part of this … is how much in the tank and how corrupt this media has become. They have corruption staring them in the face and they closed their eyes to it, and then they make up charges against President Trump that aren’t true. They don’t look at this whistle-blower. He is giving them hearsay evidence.”

“And I’m going to tell you one other thing — Biden’s corruption helped to cover up all of the allegations of collusion because there was a company involved run by George Soros which was involved in the investigation, and that was closed down to cut off all of the proof, the additional proof, of just how far the Democrats went in corrupting the 2016 election and in corrupting the Ukraine,” Giuliani concluded.

Allegations surround the Biden-Ukraine corruption scandal stem from comments that Biden made last year when he bragged to an audience that “he threatened Ukrainian President Petro Poroshenko in March 2016 that the Obama administration would pull $1 billion in U.S. loan guarantees, sending the former Soviet republic toward insolvency, if it didn’t immediately fire Prosecutor General Viktor Shokin” who was investigating a company that employed Biden’s son, The Hill reported.

“I said, ‘You’re not getting the billion.’ I’m going to be leaving here in, I think it was about six hours. I looked at them and said: ‘I’m leaving in six hours. If the prosecutor is not fired, you’re not getting the money,'” Biden said. “Well, son of a bitch, he got fired. And they put in place someone who was solid at the time.”