In his new book, "Betrayal: The Final Act of the Trump Show," Jonathan Karl says Mike Pence was under more pressure to overturn the election than was previously known.

Nov. 8, 2011 -- JONATHAN KARL:All right, we are live on ABCNews.com and Yahoo News with a program called Newsmakers. Mr. Herman Cain, thank you for joining us. HERMAN CAIN:It's my pleasure, thanks ...

Vice President Dick Cheney sits down with ABC News' Jonathan Karl Dec. 16, 2008— -- The following is a transcript from ABC News' Jonathan Karl's exclusive interview with Vice President Dick ...