Mark Meadows repeatedly dodged the prosecution's questions on whether he believed Donald Trump's claims about the results of the 2020 presidential election.

"He believed he won," Meadows said, to which the prosecution pressed, "Did you believe that?"

"I believed there were additional things that needed to be investigated," Meadows replied, without saying whether he personally believed Trump won the 2020 election.

The prosecution repeatedly pressed Meadows, asking at one point if he meant that he did not have enough information to come to his own conclusion.

Meadows again deflected, saying there were a number of allegations, but he believed the signature verification issue in Fulton County, Georgia, had more credibility than the other allegations.

-ABC News' Soorin Kim

When Mark Meadows' hearing resumed Monday afternoon, prosecutors honed in on the time frame between when Donald Trump asked Meadows to set up the Jan. 2, 2021, phone call with Georgia Secretary of State Brad Raffensperger and when the call took place.

Prosecutors also tried to undercut the claim that the Raffensberger call was federal business. Under questioning, Meadows noted that no one from the White House counsel’s office or the Department of Homeland Security was on the call.

When the prosecution asked Meadows why he believed by Jan. 2, 2021, that questions about the election in Georgia were still "outstanding," as Meadows had testified, the former chief of staff said because Trump "kept asking me about it."

On direct examination, Mark Meadows' testimony at one point became almost a one-on-one conversation between him and the judge, as they both swiveled their chairs to directly face each other.

The judge asked Meadows his own questions, including asking him for specific instances when he went out and got information.

They were "very insightful questions," Meadows told the judge when he was finished.

Mark Meadows said on the stand that he wasn't sure whether the lawyers on then-President Donald Trump's phone call with Georgia Secretary of State Brad Raffensperger were Trump's personal attorneys or lawyers for the Trump campaign.

The prosecutor then asked Meadows if he didn't know what roles they had then "why did you want them on the call?" At that moment the judge shook his head in seeming bewilderment.

Meadows said the purpose of the phone call was to find a "less litigious way" to resolve an issue regarding signature match in Fulton County, Georgia.

Repeatedly asked about how the call with Raffensperger came about, Meadows said he reached out to Raffensperger himself once and then reached out to a staff member of the secretary of state's office, but he said neither of them answered and he does not recall how the call was eventually facilitated.

He said Trump himself asked to reach out to Raffensperger.

Asked about his conversations with Cleta Mitchell, one of the three lawyers involved in the call, Meadows said he spoke with her about a variety of aspects related to Georgia and alleged election fraud but said he doesn't recall the specifics.

-ABC News' Nadine El-Bawab, Will Steakin and Soorin Kim