Rudy Giuliani sparred with Fox News chief White House correspondent John Roberts as he questioned the former mayor about his interactions with the Ukrainian government.

Addressing Giuliani's recent fiery interview with CNN anchor Chris Cuomo, Fox News Sunday guest host Roberts played the clip for Giuliani, in which the president's attorney said he did not request Ukrainian officials to investigate Hunter Biden, only to state the opposite moments later.

"It doesn’t matter, I clarified immediately," Guiliani said after the clip. Giuliani spent much of the interview attacking the coverage of the whistleblower complaint about Trump, and focused on Biden's alleged role in a "cover up."

"How is your coverage so distorted? If you did any work you find out [former Ukrainian prosecutor General Yuriy] Lutsenko is the prosecutor that Biden put in. There’s a newspaper article in which Biden approves Lutsenko when he’s appointed. Doesn’t that strike you as odd that the vice president would approve a particular prosecutor? Did you ever bother to look — let me finish," Giuliani stated, and continued after Roberts tried to ask another question.

He continued, "I won't answer another question unless you let me finish. It's really unfair."