Former Vice President Mike Pence said in an exclusive interview with ABC's "World News Tonight" anchor David Muir that while he was working to connect with military and law enforcement officials during the Jan. 6 riot, he couldn't speak to then-President Donald Trump's apparent inaction.
"Over the course of several hours, you spoke with the acting defense secretary. You spoke with the joint chiefs of staff, Gen. [Mark] Milley. You spoke the acting attorney general, Jeff Rosen, with the chief of Capitol police. Where was the president in all this?" Muir asked the former vice president.
"David, I was at the Capitol. I wasn't at the White House," Pence told Muir. "I can't account for what the president was doing that day. I was at a loading dock in the Capitol where a riot was taking place."
Muir pressed Pence on reports that Trump was watching the riot unfold on television at the White House.
"But why wasn't he making these calls?" Muir pressed.
Pence responded: "That'd be a good question for him."
In an exclusive interview at the former vice president's home in Indiana, Muir also pressed Pence on whether Trump should ever be in the White House again, whether Pence will run for president, whether Trump hurt Republicans in the midterms, and what Pence makes of authorities saying classified documents were taken from the White House.
Pence was overseeing Congress' certification of the 2020 Electoral College results on Jan. 6, 2021, when a large crowd urged on by Trump marched to the Capitol and then overran security and vandalized the building, sending Pence and congressional lawmakers into lockdown.
Trump, who has insisted he did nothing wrong, ultimately told the rioters to leave but only after berating Pence for not blocking the certification -- which Pence noted he couldn't legally do -- and repeating baseless conspiracy theories about widespread fraud in the 2020 election.
David Muir's exclusive interview with Mike Pence airs Monday during "World News Tonight." The full primetime special, "David Muir One-On-One with Mike Pence," airs Monday at 10/9c on ABC.
ABC News' Tal Axelrod contributed to this report.