reporter: it will all focus on the pressure on mike pence to take that unconstitutional action on january 6, 2021 to overturn the electoral certified votes of the states here on january 6, something of course that he rejected doing. but going to the genesis of how this theory first came about. looking at the trump attorney john eastman who is a prominent supporter of this and directly tie donald trump s words to the violence that occurred on january 6 as words about mike pence into exactly what happened here in the capitol. now, two people will be testifying who are very close to mike pence, we expect to hear from greg jake sob who is a former counsel for mike pence and as well as judge mike luttig, former judge and adviser of sorts to pence to understand what the vice president was thinking at the time. we do also expect to see video deposition from his former chief of staff marc short, who will be featured prominently in today s hearing. we ve gotten a copy of judge lutti
insurrection, the january 6th committee plans to focus on donald trump s repeated pressure on former vice president mike pence to block the certification of the 2020 election results. remember what trump told the crowd just hours before the attack on the capitol. mike pence, i will tell you right now, i m not hearing good stories. i hope that our great vice president, our great vice president comes through for us. he s a great guy. of course if he doesn t come through, i won t like him quite as much. hmm. the committee s going to make the case trump s pressure campaign directly contributed to that day s deadly violence. new photos obtained by abc news show pence and his family in hiding after the former vice president was rushed off the senate floor by secret service during the insurrection. let s begin our coverage with cnn s ma nu raju live on capito hill. walk us through exactly what we ll watch later today. reporter: the committee will try to lay out the time line